I can see what you mean. The software would have to call for it (the FPU), as it would on any of the other processors with it built in.
Bottom line there is no gain to putting a 68010 into a machine.
(btw)
Yes.
Repatched control lines and clock signals, PGA 68030 processor patched in just need to get the PAL chips sorted and it will be up and running.