Parking a Truck Camper at a Tent Only space in Yellowstone

It was explained to me this way when I asked about my TC in a tent-only camp spot;
No. How would you like it if a tent was in an RV only spot?

He went on to explain that every spot would be filled with RV's/TC's if they allowed 'em into tent only spots.

He said tent-only spots were originated because RV's would always take every spot and tenters would never get one. Tent campers stay a few nights, RV's usually longer.

Anyways, that's how it was explained to me at Yellowstone.