Let's say this potential character is on Asura, here's what it costs to get a REMA BRD:
Marsyas: 25m (I'm shocked to hear it's this low, but let's say it's true)
Gjallarhorn: 60m
Daurdabla: 87m
Carnwenhan: 143m (or 223m if you want AG) (or 277m if you want R15)
Moonbow Whistle +1: 25m
Plus Altana knows what other gear like Stikini rings, Moonlight rings, a +2 Neck, etc.
So this new player is going to casually ***out 340m, plus spend all the time doing the 50k beads, all the trials for all these weapons & instruments, plus *** of other gear...quickly? Where is a new player going to get 350m in "a couple of months"?
...Meanwhile, our GEO friend is at 75% potency on day 3 at the grand cost of like...10m?
I'm sure there are still elitists who will tell you to *** off without an Idris, because they're idiots, but objectively speaking from the perspective of the stats being offered by the job, GEO is way better off much earlier than a BRD with a similar budget of time/gil.
I've mentioned it before but my group was killing Aminon (including HM) for months without using Idris because our GEO had his weapons locked. We didn't even realize it for a while.
You will notice an instant and extremely obvious difference if your BRD is missing any/all of the items listed above. I mean, I guess if you have all but 1 of them it won't be so bad (depending which one), but at that point you're already several hundred million in so I'm not sure there's a strong argument to be made there...