Ironically enough, I actually used the in-game "Leave a Suggestion" feature going into depth as to why Level Sync is terrible, with the theme of not having a complete toolkit by the time you hit level 50 which discourages players from doing level sync content, while encouraging players avoid Level Sync content if they can help it, because not even the Moogle Tomestone events aren't enough to get player to do level sync content and players would rather spam Frontlines instead.