How can it even remotely be considered rent seeking to charge for a service you provide?
Rent seeking always involves charging for a service you provide. That’s not the qualifier. Rent seeking here would be to provide cheap/free fuel until capturing enough of the market, then raising the prices to above market price. Not saying they succeeded. But to me it looks like they tried.
Given that they just laid off 7% of their employees due to cost measures I'd say likely not. They're just not longer subsidizing it for owners because they don't need so much of a draw card.
Taxpayers aren't subsidizing them as much anymore either. Quite possible they just couldn't afford dumping electricity anymore.