I dont think gatekeeping should prevent new people from playing a game, per se, but I dont see anything wrong with telling people to play a different game if they are demanding the game change to fit their tastes.

Basically, if someone is acting like they know better than the developers, and their "improvements" don't fit in line with how the game plays or feels, then their opinions on the game shouldn't really matter. They have a problem with the game, and the problem is that they should play a different one.

I don't go around saying how Final Fantasy should stop being a turn based JRPG just because turn based combat and random battles make me go to sleep from boredom. I just don't play those games because they aren't for me.

I guess thats really the issue: not every game (or movie, book, comic, etc) is for every person. Expecting that every game should change to fit your own tastes is toxic, and shouldn't be allowed in communities. Unfortunately, all too often it is allowed and the result is disastrous. It alienates the core fans that would spend money and soon after the entitled people leave to ruin the next shiny thing.