No. There's places that actually need those power-buffers and yeah, they tried to use lead acid and recently scrapped it for EV batteries. More and more this stuff has to go into them. Even to the point of giving batteries to individual panels as well as to the entire system, and then notifying the power company when your power production is about to drop, because they need to know that and need to account for it.
There's a lot of power stuff in the grid where we have like natural gas generators and places that can take less consistent power that are being more and more utilized. The truth is the power companies have a point. As hidden supplies of solar power become more and more common place the problems with the grid are going to be more pronounced. Mainly that all the batteries in the world would only give ten minutes of all grid power. We really need this stuff and we don't have it. Old ass screwed up power-grid.