Well, I think it is a grey area and maybe ANet hasn't even thought about it.
In the old macro policy, it was a strict "one keystroke = one action", so it probably would have been forbidden, but even that isn't sure, as e.g. a complete emote was considered one action. In the same sense, casting an ability (maybe with snap to ground or not) could be one action altogether, because the character only performs a single action, or it could be two actions, as in the UI, there are two different states.
Additionally, it's not a "must be 1:1", as it used to be, but just a "should be 1:1 in the context of fully automating a character", with some exceptions (like space + v) even affecting combat.