I agree that strength needs some changes. It is a class that fundamentally goes against AO’s PVE gameplay of “blast spam & kite away”. However, I don’t really agree with your solutions: 1) changing bosses to suit one radically different playstyle doesn’t make sense, especially since a lot of the bosses you mentioned are quite well designed imo 2) Tridents diminish the identity of the strength class because it essentially reduces strength to just another mage (we see this already with spirit), which harms the “melee fantasy” of the class.
I’d have to think about this topic a bit. I’ll come back later if I have more ideas.