It doesn't matter what Rowling's decision is about ebooks. By the time she finally decides to release it, any one who really wanted it will have already gotten it off the dark net directly or from one of their "friends".
So her obstinance is only harming her wallet in the long run, and alienating people who would like to read her books but have physical limitations with their weight and size.
Not being a Harry Potter fan, I just munch on my popcorn and watch the drama.