Don't know much about fhe context here, so I won't defend this person if she's actually pretending. That said, I wore masks consistently, and completely understand their value, and would never complain about people wearing them, but...
Holy hell are people harder to understand when wearing them. I know it's a me problem, and I know why it's a problem, so I completely understand why somebody would say that.
Still not enough to justify not wearing one.