Automatically do what people probably want, allow adjusting if needed
This is probably the thing that irks me the most about it. Most everything I open remembers where it was last time I opened it and just goes there. So I only have to decide once where and how big I want a window to be, generally. I don't want that to be contextually different depending on what else is open the vast majority of the time either, so I don't want to fight with my DE over where and how big a window should be.
I don't know, to each their own I suppose. Tons of people seems to like Gnome, so I don't want to hate on it... But it feels like they are making a DE for people that don't want to learn to use a computer, people that have mostly only used tablets and phones, or people that want the device to make the decisions for them... Which doesn't sound at all like the people that are switching to or already using Linux. I don't know, I have to assume I am just missing the magic something that Gnome provides to others.