Interesting take. I'd guess it's pure commercialism. Deadpool went in knowing it was going to be R-rated, and they broke out the strap on. Most of the movies the article mentions are going for PG-13 so they can sell more toys. That's my take.

No one is horny? Speak for yourselves, I'm horny all the time lol

I get it tho, movies don't have characters with any libido.