I think it had more to do with the reality of the market. Solar panels have become incredibly cheap and that's because they are mass produced and standardized. Everything in the manufacturing process has been optimized. Now it is technically of course possible to make them other form factors, but artisinal solar panels are simply so much more expensive and cannot compete in any meaningful way with regular panels.

A bad idea ruined by poor business practices. Like, it's very hard to see how it could ever compete economically with normal solar panels.

It was a bad idea from the beginning, technically and economically it sucked, the only possible utility was areas with strict heritage constraints which forbade normal rooftop PV.