Then it will no longer be a shield bash, shield "bashing" is breaking a block.
I understand the whole thing, but still, he clutches because the 2 are making mistakes : too much holding. Winning a 2v1 in warband or in bannerlord is the same, just exploit your ennemies mistakes. Now yes, shield bash makes it harder, much harder, yet, it doesn't mean that the '2' won't misplay..