It's remarkable that they decided to keep the commercial offering.
When you provide a commercial-free option, the only way to squeeze more revenue out of it is to raise the subscription rate. But if you normally serve commercials too, then you can double-dip: you can occasionally raise the subscription rate (which risks angering your customer base) or you can simply add another commercial or two to a break.
And if that pisses off your customers, then it's easy for them to go to the commercial-free plan.