It's about time.
Now they need to be more consumer friendly and establish standard connectors and panel ratings for modular installations. That way panels from different manufacturers that are rated the same can be chained together making system expansion simple and affordable.
The high upfront cost of solar makes affordable expansion attractive. Consumers could start with a system that decreases their grid power use in year 1, but with budgeted annual expansions they could be off the grid in a few years.