I feel Firefox could be quite a bit more attractive, if it did less. I don't want my browser integrated with one particular VPN. I don't want Pocket on by default and hard to get rid of.
But I'm happy Firefox did Pocket because I view that as a cross-platform readability and bookmark strategy that other companies makeup for through their platform. Even if Pocket ultimately folds, I'd want Mozilla to do something else in that place. Like if Mozilla knows that iOS users by wide margins use Safari, how are they supposed to get their bookmarks to them?
So that's the point; don't bake features into my browser that point me to one company when the whole purpose of a browser in the first place is to be able to visit web pages... like https://protonvpn.com/.
This is about only one thing: money (affiliate sales).
We live in a world where VPN are a must if you want to have any expectation of privacy. Giving people easier access to these services is not a bad thing. Mozilla has a privacy-minded vision for the internet. Regardless if you agree with their vision, they are at least following it.
Also, if it's true that Mozilla is auditing ProtonVPN, that is a huge benefit to everyone. The biggest issue with VPNs are you're forced to trust this new company that they'll do as they say with your data (namely that they don't harvest or store any of it). To me, that's a huge thing.