You know something that's weird about Bakugou. His howitzer impact is lauded as his ultimate technique, a showcase of his creativity provided his grenade bracer aren't around but even then they still have it like an ultimate attack. Its everywhere, in video games, databooks etc. And he only used it once in the sports festival against Shoto who basically let him win .
I mean, I don't recall him having many other fancy moves, so they went with what they had
That may have changed later I quit after the Overhaul arc because I had to see Bakugo again