when Gnome changed to Gnome Shell Linux marketshare clearly declined. That Linux has begun to rise again, is definitely not because of Gnome Shell but more despite of it.
I’m assuming you don’t actually have data on this or you’d share it.
You keep insulting Gnome developers. You say you love how developers can do their own thing and then call the Gnome team arrogant for doing just that, in the very next sentence. They don’t have to accept criticism, they don’t have to accept contributions (think about this logically, would you want your favorite project to accept any criticism and any contributions?).
You say they hurt the ability to run Gnome apps on other desktops with Gnome 3, but both from research and personal experience I can’t figure out what you mean (I use and have used Gnome 3 apps outside of Gnome), and you don’t give any examples (despite your comment being pretty long).
I’m assuming you don’t actually have data on this or you’d share it.