I know who she is but I've never seen or heard her on anything so I wouldn't know. If she plays on the formulaic woman stuff then I imagine not.
I think that's the key, the references they make to their race, gender and sexuality are usually unsubtle, forced and ultimately unfunny. Unlike some of the others you've mentioned, they don't use their background to add context or meaning to their comedy, instead its forms the basis of what is usually a tiresome and unoriginal act. Micky Flanagan is just as bad, you can stop the working class cockney act, you're a multi-millionaire now.
Mitch Hedberg (RIP) Probably the daftest comedian I've ever heard. "An escalator can't break, it can only become stairs"
A comedian needs a theme, some roadplan to pull their take on life, others and themselves, into an act; let's remember that is what it is. Some look at themselves in a cocky way, others are self-deprecating. I have difficulty following your logic about Flanagan: when Dave Allen became famous was it a mistake to continue being an Irish religion basher; should Billy Connelly stop being the astute Scot? It's comedy, not satire, even though that can be as up-you-arse as it comes in this modern connected world.
A mention for being a big pile of dogger. Parsons is funnier and he's an unfunny, boring, slap headed ****house. IMO.
And a special mention to bob monkhouse(live act far funnier than anything on television as he was far more adult)