Level Syncing isn't the best solution

[Penthea]

Allowing the use of all your skills benefits them as well. With the proposed change, when they level up and unlock a new skill they'll be able to practice it regardless of where the roulette places them instead of forgetting about it and potentially skipping important knowledge about how their class works.

Given how quickly things often die in low lvl dungeons, if a player is high enough lvl they won't have the ability to practise their rotation on anything other than a boss.

If a player is determined to practise their rotation then they should enter content appropriate to their lvl. Not a roulette that can dump them in very low lvl content. It's not as if there is a severe lack of max lvl content to do. The places to practise rotations already exist in several forms of varying degrees of difficulty. OP should use that content instead of complaining about how he can't blast his lvl 70 skills in a low lvl dungeon.