2. If Gnome really wants to win back the hearts of potential contributors (i.e. power users), they'd better make programs that appeal to that demographic. People who have the skill and motivation to make significant contributions to a free software project often want a lot of room for configuration, including the option to use the desktop in a traditional manner. Taking away those little checkboxes and toolbar buttons is like slamming the door on power users. You might win a billion non-technical users, but none of them will ever submit a single patch.
3. Gnome is too big for its own good. Why does a desktop environment project need to maintain a complete stack of apps and libraries, from GTK to Gnome Shell to a text editor to a bundle of games to a web browser to an email client to a media player to a full-blown spreadsheet app? Why can't they just tell people to get a third-party browser? They should spin off the rest and focus on GTK, the Shell, and a small number of essential utilities. If Epiphany or Gnumeric died a slow and lonely death, how many people would really care? Heck, if you don't have the manpower to maintain anything else, just give me GTK so I can install xfce or lxde on top of it. It's really just Firefox and LibreOffice and VLC that I want, and I don't need Gnome to run them.
Edit: some rephrasing.