I would support ilvl sync actually. At least it will remove the absurdal shouts "lfg/lfm relic + 1 ak/wp sr". Levelled an alt class? Need gear for it? "Sorry, u cant enter ak/wp run without relic and full dl". Having to gear up ALT job with ur MAIN job is another absurd. Like "you cannot play ur alt job untill u have full gear, but then there is no point in playing it anymore".
However as the compensation, the philo/myth reward should be based on time spent in the dungeon. With ilvl sync and tome reward proportional to time spent in instance, all speedruns will be crushed.