GNB QoL Change:

[Satarn]

That's a pretty darn long paragraph to prove that strawman you've made for yourself wrong. I never claimed EW GNB produces "more Burst Strikes outside of the No Mercy windows", only that 1) EW GNB produces more cartridges overall, which is why 2) we still get 1 or more(depending on the minute) Burst Strikes outside of the No Mercy windows, keeping the downtime from feeling stale.
Your whole "investigation" was completely irrelevant to the topic at hand.

Yes I have looked at WAR and PLD (and DRK as well), this is why I play GNB instead of them - because they are no fun to play for me. This "clunky baggage" as you call it, is something that makes the job more engaging for many people, than the "smooth and comfy" alternatives which have had any meaningful mechanics streamlined out of them. Having to build up your resource before bursting isn't even a new thing - this is exactly how WAR used to work in all its iterations until 4.2, along with being punished for dying and changing that was welcome by some and hated by others.
Even from SHB to EW, there's certain people unhappy about WAR no longer needing resource for their ogcds and PLDs disappointed about the loss of Attonment shifting in favor of a more streamlined rotation, so they're not exactly "direct improvements" either. It's all a matter of perspective, or dare I say, taste.

As far as "unique annoyance" goes - having to plan your positioning and movement tools around very long cast times is a "unique annoyance" of BLM, while for the job's playerbase that's exactly what they take their satisfaction and enjoyment from.

You think WAR and PLD are so much better designed? Maybe you should play them and let people who want something different keep the GNB. You have options - we don't.