I'd be more on board i think with making 2H compete with DW for single target but with different playstyle (e.g. big slow hits vs quick multi hits) and then 2H having an added bonus of being able to flex into AoE; it'd mean 2H can be more than just slayer/trash clearing. It's a hard situation to figure out in it's entirety though
How about Jagex adds more bosses where AoE dps is more important than single target dps, like how Twin Furies are?
Sounds good to me generally speaking