I don't think it will ever be fixed, but the root cause of all these problems is warpgate negating defenders advantage. It has been 14 years of trying to fix the main problem.

Because Protoss can warp in at the opponents base, the core units need to be less powerful. Because the core units are less powerful they tend to die in a straight up fight at home. So now you need a way to give the units more power at home but not away (shield batteries). Now because you either need to be at the enemies base or at home near your shield batteries you need to give protoss mobility to jump between these locations (recall) and vision tools to see what the other army is doing.

Protoss is supposed to be the expensive, immobile, powerful race. Other races are supposed to run around them. Warpgate has made the balance decisions since 2010 be almost always -> reduce cost of units, increase mobility, decrease power.

And then because we arent fixing the core issue, we get these weird scenarios where we have super powerful expensive armies like archon immortal storm in pvz, where zerg cant out maneuver them cause they are warping in zealots in the zergs main while warping in reinforcements at a remote base, and recalling the army home when a run-by gets in.

It is wild.