You know what this Relic has done extremely well?

Cut the queue times for Alex and Leveling dungeons by more than half.
I now get A4 Queues as DPS in 3~5 minutes. Prior to Relics, My average was 15~20 minutes.
My NIN now gets Aery queues in less than 10 minutes where prior to Relics it was 30+ on some days.

Say what you will about the grind heavy nature of it, But it did a fantastic job of pushing people back into that older content we no longer required for gear/exp.
Now if only they added Aetherochemical Research Facility into the pool of places we could get drops from or needed to do in general, we'd solve that particular bugbear for newer players struggling to get DF queues to finish their MSQ.

I'm curious if they made the intro questline as grind heavy as they did specifically to the purpose of revitalizing "obsolete" content for newer players or those leveling/gearing alt Jobs. Because it certainly seems that way to me.