1. The Community is against the idea of claiming land.
*Allowing players to claim any unclaimed land they want in flatlands
I think you have a tendency of twisting what people have said into a more convenient truth for your argument.
2. It's pointless.
No, it isn't. It provides much better passive grief protection than CoreProtect. With CoreProtect you have to actually notice the grief occurring which may not be possible if there are no admins online or the admins weren't spectating the griefer at the time of the incident. Whereas with PlotSquared, provided the checks are decent enough, admins won't have to deal with people destroying other's builds.
Just go to F-01 flatland, then build a 100x100 (or so) primeter of slabs and boom, you now have a plot! No PlotSquared, commands, or any of that bloat stuff! See, you don't need PlotSquared or a dedicated Plot server to make a plot.
Without the passive grief protection (which is kind of the point of the plotworld in the first place)
the plan to split plots to its own dedicated server should be cancelled
Personally, I agree here. I don't see any reason for migrating it to another server except for, I don't know, the fact that the F-01 node is massive.