How do you find it weird?
The USA is still much in thrall to the bluenoses. Big corporations, particularly now in the social media era where any random somebody can generate a viral PR disaster easily, clearly want to avoid controversy while selling cars, soap, whatever.
As to viewers … If you have a “family friendly” attitude you won’t watch an uncensored show. If you have a “who cares” attitude you’ll still watch a censored show. And if you’re actually seeking porn, you won’t watch a censored or an uncensored show because you’re too busy watching real porn.
So a decision to e.g. unblur Naked and Afraid drives away advertisers and viewers.
If the USA wasn’t so worked up about “Sexuality is evil because (my ill-informed Baptist preacher told me that) Jesus said so” then this wouldn’t be happening. Sadly we don’t live in that society.
If what you find weird is that we don’t live in that more enlightened society, I agree. But see here for more about why. 700+ posts in 33 days (so far):