Agreed there are nuances, but in the context of this conversation about TFA, the suspicion is that this is mostly on the "100% AI" side of dial. There's also a "high volume, low quality" aspect to the PRs, as evidenced by the fact that the bots (or humans) don't read or follow the repo's contribution guidelines.

The very concept of "reverse centaur" implies a balance towards the "order pizza online" side of the equation.