Weren't they already bankrupt in the noughties? The reasons sounded very similar back then too. Solar is a volatile, dirty business and anyone who invests in it wants to burn money.
I have already made a lot of money with SMA Solar. But I agree with you in essence. It is very volatile and politically influenced. You should always try to take the swings here, but in the long term, it's also too hot for me.
A new technological development comes around the corner and bang.