I agree, basically. With the OP's assertion.
Getting raid gear itself can be a bit annoying, especially if you're PFing and lose every roll every week and are looking at 16 weeks of books to get where you want to be. And that's just for a primary job.
I don't really want the gear for the sake of having it, I mostly want it so I can more easily see problems in what I'm doing (right now, it's mostly going into XIVAnalysis and, when that doesn't point out anything helpful, using the compare tool on FFLogs to compare my uptime/casts/etc... to other players who performed better than I did within the same-ish kill time of the fight I'm looking at). That, and it's kind of fun once you feel smooth on things, to do fun runs, clear for 1's, try and see how well you can optimize what you're doing etc...
And, I won't lie, whenever Echo hits a tier I just lose complete interest past that point.
The other thing is, I do like playing different jobs. It gets monotonous and a bit boring playing 1 job for an entire tier, and feeling unable to branch into the other jobs since, after a point, it feels like you're weakening a party by being a full crafted BRD, instead of just a far better geared main job.
Tome gear takes forever, and I'd be for upping the cap or (I don't remember if it's in that video, or Xeno just said it on stream once): Being able to choose a fully upgraded tome item OR the raid item from the coffers you open.
And, in a game that advertises the "Every job on 1 character!" and "oh you don't need alts, so we won't think about alt support

" I think it'd be pretty reasonable to be able to gear multiple jobs over the course of a raid tier rather than, like, 1 sub-role.