So far it's not very useful indeed. only in some dungeons or just farming random mobs in the world. but nobody will notice if you don't use it. As of now it's only used in PvP. you can for instance combine it with perfect balance and get 3/4 one ilm punches off. byeee all the buffs on a dps or healer But maybe the new leviathan or coils will need a one ilm punch during a phase. but that would mean every party needs atleast 1 monk which is also kind of strange.. don't know how SE will work with or around this skill yet.