That's my feeling too, but maybe it's outdated? There's no real reason why they can't be.

there is plenty of reason why it shouldn't be. Generally speaking functionality is gated behind support (as opposed to being something you can just click a button on a website to do) because it requires at least some level of human judgement on whether a given action should be done (and there's still a whole class of attacks which are aimed against this process). Chat-bots will be even worse, because there will be an extremely consistent script than can be used for any given purpose.