thuter
Explorer
It is comparable in a sense yes, but the problem here seems to be that Stunning Assault is absurdly good at reliably locking down one or two enemies. With Stunning Assault you can easily force 3+ saving throws against an arguably stronger condition (because charm immune does not work against stunned) that does not end as soon as the target takes damage. But I agree that against large groups of enemies, spells are almost impossible to beat with martial classes.