It depends a lot on what the actual identity of the WPS is to be honest.
Execution’s identity is “Great honking damage” so it’s identity is lost if you gut its damage.
While something like Avalanche has the identity of “AoE ice spikes” which is retained irreverent of its damage output.
A lot of WPS have little identity besides just being damage amps for AA builds (Which is where the notion of talking about “AoE vs ST” WPS goes out the window, as very few WPS are actually about AoE and at best just cleave a couple of targets)
Though some do. Like Inq’s WPS. You have Fireball shot, Piercing Ice shot and Electroshotgun. Each one behaves uniquely and has different innate damage types.
Of course, in many cases identity is watered down by item modifiers… Both to WPS themselves, but also DAR’s that then transfer over to WPS (Such as the Cleave you can get on Onslaught or the pass through you can get on Onslaught)
Though, a lot of these modifiers exist because the existence of single WPS builds weren’t a thing. I.e. In lieu of being able to 100% proc on a WPS with piercethrough/cleave you instead get a modifer to your DAR to make all WPS piercethrough/cleave. Or you get modifiers to multiple WPS to give them the piercethrough/cleave they lacked.
Since having your AoE being entirely RNG based is and was awful (And with how skill point hungry AAWPS builds are you couldn’t really afford to pick up a dedicated AoE skill)
Theoretically, with the existence of more support for lower amounts of WPS through modifiers to proc chance (Not necessarily the ascendant bonuses, but just general item modifiers), balance could shift towards highlighting specific WPS’s unique aspects rather than having to modify everything into the same pierce + cleave function.
With the saved skill points for not having to sink into several WPS allowing you to pick up a dedicated AoE skill if your WPS of choice are ST ones.

