Even on a pad I've never had any trouble. I just made a clone of my main healing bar on the third hotbar with the weaker abilities which I toggle to when I'm doing a low level FATE or something. It would be a nice QoL fix if they could have spells automatically use a lower rank if you are synced and don't have the higher one available yet but I don't think this minor inconvenience justifies completely reworking the way syncing works and the enormous amount of balancing that would entail. I'd rather they added more high level content and made levelling up more fun than just slapped a band-aid on levelling roulette and encouraged even more people to level to 60 by running Toto-Rak 500 times in a row.