The "what's a spinner and what's a rotating weapon" question is always a tricky area. The best thing is to tell the EO what you are proposing.
I agree completely with the, if it is in armour and not able to come out then it is fine idea.

I did ask about exposed wheels being a rotating element, and if you had rotating lifter that spun the same peripheral speed as the exposed drive wheels on the same robot what's the difference? thoughts please

But the main point is if the event organiser is happy to let it into his arena then you can use it.