@vkc It may not be well articulated, but in at least some cases I think the upset is not with the fact that GNOME might be doing something different, but what kinds of effects that will have on the rest of the ecosystem.
I'm not sure GNOME has the kind of hegemony that it had for a while there in the mid-to-late 2000s, so maybe this isn't practically as much of an issue any more, but I think it does make a lot of people (myself included) shy when GNOME does (subjectively) objectionable things.