I think you don't take Polymorph for the damage.
I would appreciate a broader range of weapons for different attributes. I played a Necro/Hydro/Poly/Scoundrel tank/supporter/dd with Finesse and dagger and shield. It works fine. But I would prefer to use a Finesse based sword together with Warfare instead of Scoundrel, to have not to rely on dagger-based skills.
So Strength based spears in addition to Finesse based were nice. But will not happen.