I see your point and it is perfectly valid. I am happy that GNOME tries come up with something new since there are still some good DEs like XFCE which propose a solid and classic user experience. Choice is there for everyone to be happy.
It's not a bad thing that Gnome is trying to do new stuff, it's not a bad thing (in itself) that they're taking the direction they're taking.
The bad thing about it is the attitude, that users are being told they're wrong (constantly) and that the comparatively well-loved GNOME 2 was effectively declared dead and deprecated from day 1, instead of being respectfully handed off to the community or a maintenance team. Hell, G3 almost ought to have been called something else, and run separately. It's not the same thing.