Tempo isn't the only factor. If your creature density is high enough fatal push don't do much and you still didn't named a single deck who was ousted by push while they are supposedly legion. At best push ousted few vanilla creatures, who were alrdy in declin since a while. Actually beside tarmo i don't have any other in mind.
Meanwhile, many creatures based decks flourished after push got printed, and even became ultra dominant, like humans. But we also had 8 whack, spirit, hell even fish for a moment. Push wasn't even enough to push away the rock kek...
Jotc pushed etb CA & more generally spells on a stick super hard the 4 past years to make modern a creature centric format. And of course succeeded. But big surprise : it make things even worse, wew who could have guessed right?