Come to think of it, this makes zero difference. The teams get paid out of TV revenues. Ok... except part of Ferrari's backhander for being Ferrari. And they won't miss the cost of, say, 1600 tickets.
Cost cutting, as non-clueless fans know, is about reducing and controlling the cost of going racing. There are only 2 ways of doing that - regulations and an agreement between teams - and LM can force neither of those.