It's weird for me.
In theory I would prefer a domme who has the attitude of the domme you spoke with, that there are no hard limits and what she wants, she gets. Mainly because that seems like a domme who really gets into her role, and like she said, isn't just a "service top" (First time i've heard this term). I also love the unexpected in a session.
In practice that's a fucking nightmare! I don't list anything on my hard limits that I even remotely think i'm ready for! If it's a limit I don't mind being pushed, i'll list it as a soft limit.

A domme who believes her sub has "no" rights is too extreme. I think a domme who does what she wants though can make for a far more exciting session, so long as hard limits are respected.