I'm all for letting establishments decide to allow or ban vaping, but it does seem...lazy I guess. I mean, if some numpty was being a bawbag about his vaping, turf him, end of. If some dude got aggro and tried to smash up a chair, would they ban men? If some kid threw a tantrum, would they ban kids? If some white person was loud about his racism, would they ban white folk? No, because it's all covered under the standard "we can boot you if you're a d**k" policy, same should go for vaping.
Sure, I wouldn't vape over a meal, and wouldn't like to eat in the midst of someone else's clouds, but I don't like trying to taste food over the fog of perfume/aftershave some folks douse themselves in, when is that getting banned?