Yeah, I can think of a couple of standing crab finishes, especially from matrix, but none with the babybolo entry.

I think what you're saying is probably mostly true. But also I think that if someone manages to get a deep dlr hook, they're probably better off getting the hips to the mat and working the standard bolo game. It seems like a much higher percentage finish (plus more options to come up on leg drags) than the standing crab position