It’s not about it making the content too easy and more about job balance. Think about it, you queue as a level 90 BLM into roulette and get something below level 50, imagine the massive difference in power between you as a level 90 BLM with access to enochain, fire IV, despair, xenoglossy etc. and an actual level 50 BLM who is still spamming fire 1 for firestarter procs.

There is already a discrepancy between a fresh 50 and a level synced 90 due to the way ilvl sync works, adding in access to skills that they don’t have access to will only make the gap wider and more noticeable.