Just call it a drainting. 🤣
Seriously, some refer to the use of oil pastels as drawing, and perhaps that's correct after a fashion.
However, you have to mix and blend colors like very thick paint, and the crayon is very blunt, more akin to a large brush. Also, the coverage remains slick / wet, whereas a drawing is usually dry, or dries extremely fast (ink). Lastly, the result almost always looks like an oil or acrylic painting.
So I subscribe to the "painting" notion like most. The transition between drawing and painting is fluid and by no means clear cut. BTW, "drainting" is a real thing, whereby large areas are covered with paint and fine details added with drawing implements.