It should work - I'd double check the entire system failsafes properly as some recievers will hold the last known position on some channels which is obviously quite a bad idea for drive!

Motor speed and temperature are probably going to be mainly useful for current limiting/protecting the motor if it gets stalled - I can't think of too many other reasons to have that data in a robot. If you have a need for it, you probably know enough to know whether it's a good idea!