Maybe I'm speaking for myself, but I don't totally see it that way.

The timeline is such that this lawyer got on the scent of Watson, and 'organized' (this is not at all the right word, but I'm struggling today) filing the accusations. I'm not trying to say that he fabricated the accusations, but his preliminary work was seeking out as many accusers that would come forward. That's how these women came to be represented by him.

By many accounts, Buzbee is (at least somewhat) successful in his line of work. He's good what he does. Knowing that, it makes sense why an accuser would want him to represent them. He also has a bit of a reputation for being dramatic/flamboyant when he's working.

Dude is good at what he does, and he's also a bit of a clown. Both of those can be true (IMO).