Mozilla is probably not happy about point 3 either:

> In order to get the new browser to users as soon as possible—which was necessary to iterate quickly on user feedback and limit resources needed to maintain two different Firefox for Android applications—we made some tough decisions about our minimum criteria for launch.

https://blog.mozilla.org/addons/2020/09/02/update-on-extension-support-in-the-new-firefox-for-android/