It’s expensive, and clearance issues for broadcast is probably difficult enough on the timescale that SNL runs on. And I presume Lorne Michaels feels it isn’t worth the effort to pursue in most cases. If something goes particularly viral and the Internet world is crying out for it to be on Hulu, they can presumably work on the Internet clearance issues at their leisure in the week following the broadcast.
I don’t know, I didn’t think much of it, definitely not in the same league as the Chris Farley/Patrick Swayze skit (RIP). Tres Equis was the hit of the weekend for me.