It’s mostly that they don’t understand their own users and potential customers in this particular case of Bitnami. There are so many other ways to increase revenue without alienating the core developer base. Enterprise want stability, breaking changes is a poor way to convince someone to pay you.

Is there other ways that are just as easy?

Last company was pretty heavy free user of Bitnami charts for various things but biggest being Redis clusters. I can't imagine they could convert everything into a cluster using their own charts before this kicks in. Very possible they end up tossing at least a year worth of licensing towards Bitnami.

Yes. Whatever money you get with this is going to be small and short-lived. The big money is in compliance. That is a GTM problem, not a technical one.