Why are 40k players (especially new ones) so rule compliant and anti critical to gw ruling?

Everytime geedubs is squatting units for no reasons, for example the slaanesh range being more and more phased out to aos. People who point it out are quickly shut down by the community.

When you suggest that people, maybe your local group switched to 2nd 4th or maybe a whole other new system, it's always "Don't spread negativity, no need to hear that, just do then and shut up" it's really this "shut up and consume" mentality that took over.

I have people second guessing my old cadian army because of the 1mm difference because "competitive rules are standard for casual games"