I don't agree. I think opinionated design products are much worse in general.

It's really great when your opinions are aligned with those of the designer. If they're not, you're straight out of luck and you're stuck with something that isn't really for you.

This is why I love software that gives as much choice as possible. Like KDE for example. Because I have pretty strong vision myself and I respect my tools to conform to that, not the other way around