It wouldn't be so problematic if it wasn't the only way to play USF right now
Most efficient TD (dat crush yo) in the game + death crit artillery + late game AI call in tank + early game flamer + demo infantry = !!!FUN!!
But yeah no the doctrine is borderline OP with the amount of crazy stuff shoved in it; the fact that USF needs help doesn't change the fact M10 spam is hellish to play against and Armor Company is just call in cancer for the new meta.
Mobile Defense is the same way, ever since they pushed mediums so far back the very last call in meta doctrines have now been brought to the front of the current meta.