I think it’s more that the Firefox/Mozilla community is relatively small and has a self imposed echo chamber.

For example, when discussing mobile browsers on Android, it’s a fact that Chromium based ones have significantly better security then those based on Firefox for Android. It sucks, but it’s true.

Whenever that’s brought up, downvotes follow.

Whether, or not, that echo chamber is so large that includes Mozilla leadership, I can’t speak to. But I wouldn’t be surprised.