You're ignoring the costs of these bans. They are low hanging fruit, but they also have almost zero impact. At the same time, there is opportunity cost in political capital as well as resentment against environmental causes. It would be nice if that resentment at least came with some substantial improvement and not symbolic hollow victories.
Maybe we should just let it burn down if we're going to halt environmental progression on the basis that people will be too upset that they can't drink out of a small manufactures cylinder. Fuck me