Not really. In this analogy I know this group exists and plan for, with, or around them. If vegans found an activist group that better aligned with their goals why would I be surprised or upset they went to that one?
None of this is surprising, or at least it shouldn't be. We know how people actually behave.
Furthermore in this analogy the animal rights group isn't campaigning to stop puppy farms, they're campaigning for puppy farms. Of course people that care about animal rights didn't support them.