The company is sustainable based purely on their electrical work. There's room for growth, but generally you know what you're going to get: small dependable profit for a company that should be private.
So let's set aside their ability to operate because frankly that's never been in doubt.
The settlement is a one-time catalyst and will likely mark the exit of many people in the coming days as the initial excitement creates a run; this becomes more likely as the settlement amount increases. I may very well be one of those people if there's no verifiable and viable follow-up plan for expansion of the charging network.
It has nothing to do with whether I think the company is legitimate; it appears to be so. However, I've said all along that 3 cents is a solid ceiling barring some insane development impossible to predict.