He's right. Working for new artists, doing remixes for hot songs etc keeps you relevant. Especially when you're a big artist like her.
Regardless of the poor quality, it's a good thing that the market for women rappers has expanded beyond the typical "only 1-2 are allowed to be relevant" situation of the past. That's a good thing not only for the artists but fans. I just hope at some point it benefits a dedicated artist, whereas now it's kind of just a label game to finding malleable internet trolls and reality tv castoffs to dress up as rap superstars.