I think you guys are forgetting, that in Stomper his shooting attack can be damage 5 or 6, and his club damage 4 or 5 depending on size of target unit. *EDIT: Only affects manchrushers, ignore this excitement 😂).
In gatebreaker, with wavey flags, he's basically hitting everything on 2+.
Also, the auto kill a model ability is just roll greater than the wounds, not double, so 4 or 5 wound models can potentially be killed. and lower wound models are much easier to kill.
Only downside is no mortals on the charge. Not sure why.
I thought I had my list sorted out and now I am not sure if I include my bonegrinder or not. 😂