I'm not a fan of hotswap with a plate-mounted setup in theory, since the switch pins' friction will be the only thing (collectively) holding the PCB in place with no mechanical fasteners.
I think this got discussed a while back in this thread, but not sure if anyone had direct experience with plate-mount hot-swap. The mechanical clips on the switches only attach to the plate, so security of the PCB staying in place (and issues like getting misaligned with movement, pulling from USB cable, stabilizers coming out of place) are all resting on how tight the holtites are, or in the case of Kailh hotswaps how strong the springs are in the sockets.
Only workaround I would think of (if using holtites like mentioned) is direct soldering a few strategically placed switches at corners/edges of the PCB where you want the flex to be minimal to "anchor" the PCB in place relative to the plate, and then hotswap the rest of the board.