I like this view. Still, this seems a way of reasoning about that artist’s success at that particular gallery - perhaps the artist is busy with art projects that are better aligned with them.
Quite likely, though I think we are talking about different things. OP and I are talking to shared alignment, where they came together to sell art for mutual benefit and how to spot good partners to work with. Sure if a partner isn’t good for you, they might have other places where they work well, but I think that’s out of scope to the article IMO.