This is not about community "resistance" to change per se. Or, to the extent that may be true, it is, I would suggest the least important thing.
It is, of course, true to say that some users, myself included, are not especially happy about a change to the default menu following an earlier consultation where it was clear the majority of users did not want such a change. However, changing the default menu would be quite acceptable, to me at least and, I suspect, other users if (a) it is not some Frankenstein amalgam of the traditional menu and Brisk menu, (b) it is not given the name "traditional" and (c) the traditional menu is presented as a layout option in Mate Tweak with the title of "traditional (gnome-2-like)" layout. Personally, I am ambivalent about"a". But, "b" and "c" are red lines for me. Not for myself, as it happens, since I am an experienced user. But, for the sake of choice of new users.
The resistance that has been encountered is, I would argue, due variously to (a) the proposed changes not being formally notified to users, (b) the mashing of the traditional menu with the brisk menu and (c) there not being a transparent and easy (for new users) method of choosing the traditional layout in Mate Tweak.
If those things were in place, I suspect there would be support and/or little resistance. Or, at least, I can certainly say that would be the case for me.
But, that is my final word, now, on this issue. I am currently hogging this thread, it seems, and so my opinion may not, in fact, be typical.
If others feel differently they have every right to say so and and I urge them to do so.