The whole "Twitter Artist" meme isn't meant to literally encapsulate every single artist on Twitter. Of course there's artists on the site that don't fit the meme. This is because the meme isn't referring to them.
It's talking about a specific group of artists who draw purely based off the Twitter algorithm. Shoddily drawn drawings of women with big hips and breasts. No understanding of anatomy or any real skill in drawing anything else but that specific body-type.
She always gets mad about this meme because it describes her art so perfectly. The only thing she is good at is drawing a specific body type. She can't draw backgrounds, male bodies, clothes, muscles and anything that isn't a 3/4th drawing of furry with big boobs.
She is the epitome of a "Twitter Artist" and her coping by referring to herself as "In-between" is peak delusional.