It's ok to have abilities that are not part of the "rotation". A good RPG has tons of them. Situational should be the rule, not the exception. You learn abilities to deal with situations. Learning abilities is part of personal progression which has been greatly damaged already. One Ilm Punch made perfect sense for a monk. It should be retuned in some form, even if it's just an additional stun. Abilities should not just show up and disappear because of patches, they should be learned on the journey or transformed through experience. Like so many games before they are treating classes/jobs are a series of mechanics and designing the game around tight balance. It's the e-sport mentality that should be foreign to the genre.