In my opinion, baiting isn't abusive as there's no harm so long as the non-human is getting something they want and not being forced. That said, using bait is not something I want to see, not because it's abusive, but because I want to see happy partners who are willing and engaged, motivated by the pleasure they receive rather than having to be lured.
If bait is needed, I tend to think poorly of the situation and the motivations of the humans involved and wonder WTF they're doing so wrong that they can't get the non-human to engage otherwise. I feel it speaks volumes to the amount of trust established between the participants.
As for it being banned, I don't really care as I'm not a regular consumer of porn and it's not why I come here. I don't see baiting as inherently harmful, but I think it reflects poorly on anyone using it and I'd think says a lot about someone who'd find such appealing to watch. I recognize that not everyone develops an emotional attachment, but I personally can't see how a "performance" by a disinterested non-human could be of interest to anyone; but I've seen what passes for standards for some people.