Just an opinion here, I may see it differently than some of you:
There must be something in the nature of many of us to call out something that we see as defects.
It gets worse in regards to a car on display at a show. Something about a car show brings out the critics, right?
Some people feel compelled to bring attention to things that they see as incorrect, fake, unoriginal, not stock or just wrong.
Some of the critics are decent people that may NOT think that others might get pissed about being criticized. If you complain about their comments, they are surprised and caught off guard....Much like the Husband that can't understand why the Wife is pissed.
Also....
The nicer the car, often times... the more critical people get. When my Charger was a battle scarred green bomb, people loved it. Once it was painted, I'd get a few compliments as well as a few comments on how the wheels were too big, paint is too smooth or that a panel gap wasn't consistent.