I’m glad you enjoyed it, because in my experience it is dead-on accurate.
Case-in-point #1 – Lou:  This is the guy who had his bachelor party at the paintball field (as it was known that bar-hopping would be morally out of bounds for his wife, let alone strip clubs).  She called up one of us every single day for four days leading up to the bachelor party, asking questions like will there be strippers, beer etc.?  She even called his cell phone while the bachelor party was in progress.  
  Turns out she is indeed a controlling bitch.  A favorite example is when she threw him a party to celebrate his 30th birthday, and invited a few of his friends, as well as a bunch of her family.  Right around the time her family was leaving, the old friends sat down for a little bit of cards, which this old circle of friends hadn’t done together for years.  Unfortunately, it wasn’t to be, as she came up to the table – “Lou’s tired and wants to go to bed now.  Thanks for coming to his birthday party.”  Yeah, happy friggin’ birthday.
Thing is, she didn’t act like this while they were dating (obviously).  But on the inside, she was insecure and controlling.  Her mistrust of him surrounding the bachelor party was a pretty good indicator of what was coming.
Case-in-point #2 – John:  John’s wife treated his bachelor party quite differently.  When I randomly bumped into her prior to the party, she off-handedly asked what we had in store, and of course I told her booze, cocaine, and wild dominatrix hookers.  Her response?  “Make sure she whips him a good one for me!”  You see, she trusted her husband, and that trust lasted through into their marriage.  Of course, he lives the married life – I can’t expect to call him up on a Friday evening and say “hey, we’re going out, c’mon!” and expect him to up and go.  But if I call and say “Next weekend, Friend X is coming to town and we’re all going out,” she lets him out with no hassle.
The bachelor party is the first real test of her trust after he’s signed up for the big commitment.  Make jokes if you want – it’s obvious you didn’t start this thread to be open-minded and consider any opinions other than the one you came in with (bachelor parties are barbaric - men are pigs - they should all rot in hell) – but in my experience it’s very true.
Guess what – you’ll never have time to cover every morally ambiguous situation in detail so that he knows for certain what you consider “right” and “wrong”, and furthermore, you have no right to dictate his behavior in such a manner.  Trust doesn’t mean you’ve taught him how to behave in every situation.  Real trust means you’ve spent enough time together to know that morally, you’re about in the same ballpark, so that when any morally ambiguous situation comes up, you know that he’ll behave in a manner you can respect.  That is exactly what I meant in my first post when I said “…you haven’t known him long enough to develop real trust…”  By the time a bachelor party is an issue (ie, engagement), this shouldn’t be a problem.
No, but the fact that you don’t want him to go out if there’s a remote possibility that nude wrestling might come up and you haven’t yet covered that chapter in the Handbook for Tster’s Puppies does make you controlling.  The fact that you are afraid that if nude wrestling did come up he might not make a decision you could respect does mean you don’t fully trust him.  Not that the trust issue is necessarily a bad thing – you haven’t mentioned how long you’ve known this guy and it may not have been long enough for you to know whether you and him see eye-to-eye morally.  However, if that’s the case when you get down to bachelor party time, you got engaged too soon.
Ahh, but if he said “You can’t go to the bridal shower, because there’s a chance you might get raging drunk and your friends will talk you into spending our entire life savings on shoes!” then he would definitely be a control freak.  
You pretty much summed up the attitude you already had when you made the original post, and that you haven’t budged from, despite people telling you the opposite.  Read the responses to your posts – completely innocent bachelor parties with zero infidelity are way more common than your dreaded hooker-fests by a huge margin.  If you boyfriend’s friends have actually witnessed actual groom-hooker sex during a bachelor party, they are among a very small minority of men (and the fact that your boyfriend hangs out with such people should weigh into whether you consider him trustworthy).
Forget the stupid stories you may have read on the internet – they are not representative of the vast majority of real bachelor parties.  I mean, you don’t watch one episode of Jerry Springer and assume every man in the world used to be a female that only got a sex change to sleep with his ex-boyfriend’s mother’s sheep, do you?  That’s a pretty good equivalent to the wild hooker-sex bachelor party stories.  The stories are out there because they are entertaining – a freakshow.  The very fact that they are such popular tales makes it obvious that most real people don’t experience such things in their actual lives.