Shove is not the dominant tactic in most areas of the game right now. Not even close. Much less during most turns. The suggestion otherwise is simply not true.
There are a few places where shove is attractive, as if the game is inviting you to use it. Some people consider those few places fun. But most encounters aren't designed for shove to be the most effective tactic.
If necessary, we can make a list of every encounter and go over why shove isn't the best option. Encounters like the three fishermen on the beach, for instance. Or even the three intellect devourers on the beach who are much more easily taken down by ranged attacks.
Then we can have some data at hand when we throw around terms like "most."