That must be why Idina Menzel does it all the time.
It's also easier to sing through your nose to hit the high notes but it's still irritating. Sopranos and tenors do it all the time and assume they get away with it.
Warming up in the irritating nasal voice, fine. Performing, not a chance.
I don't WANT to live in what they call "a certain way." In the first place I'd be no good at it and besides that I don't want to be identified with any one class of people. I want to live every whichway, among all kinds---and know them---and understand them---and love them---THAT's what I want! - Philip Barry (Holiday)