She's not a mere dauber. She's skilled. She's not just a "conceptual artist".
I thought Picasso was all about revolutionizing art, until I visited the Picasso Museum in Barcelona, and saw his juvenilia. Then I realized that he was an extremely skilled draughtsman, anatomist and figurative painter.
I'm not keen on Tracy Emin, but I was mistaken to underestimate her.
That's perhaps a stretch; plenty of public figures have painted on occasion, maybe even sold a painting or two, but would not be considered painters.