Look... nobody is "offending you" because we think the statement - "this behind the scenes skit is comedic, NOT a documentary" is false.
People are "offending you" because WE ALL KNEW THAT!!!!!!!!
Pointing it out is equivalent to calling everyone here mentally stunted... it's like showing us proof that dinosaurs didn't live with man, thus Flintstones is not real. It's like giving us a list of French chefs to convince us Ratatouille wasn't based on real events. It's like pointing out plot holes in Rugrats to show us all that a set of talking infants actually couldn't have had those adventures...
To be blunt- it is COMPLETELY obvious to us all, unnecessary to mention, and (again) bizarre that you started it off with the assumption that anyone whatsoever thought it was real. Literally not a single person had intimated that. Your "clearing up of that misconception" was nonsensical. There was no misconception!
We are all sitting around scratching our heads & wondering "why on earth did he think he had to say that?"
Fake "outtakes" rolling after credits of animated films are VERY common practice & have been for at least the better part of a decade. We all get that it's done for comedic value - nobody (else) is wondering if it was scripted. It very obviously was.
What is there left here not to understand??