Open Job Advancements: Thoughts?

I don't really see the point. You pick the class you enjoy the most, then you generally stick with it.
Gear controls bossing much more than class these days, so any tactical advantage going back and forth looks very minor.

I guess bandwagon jumpers like this alot though, since they only pick classes that give the absolute edge.

Shadowers are f'uck tons better than NLs at magnus, and imo in general for damage. NLs are much better for farming. DBs are probably even better than shadowers but they require so much more funding.

Switching between warriors let's you choose between whether you bind or if you need to die less (more?) or just damage.

Pirates are all different so i shouldn't need to explain, it's mostly for play style. I can't really think of where a bucc does better than a cannoneer except maybe Cvellum, and i think corsair does better than both pirates at magnus.

Moveset certainly is worth switching for in some cases, but it still isn't necessary.