Why don't we have more DPS abilities ?

[Shurrikhan]

Also monk got nothing good that expansions and between 5.4 and 6.0 it was left feeling like a husk of a job

???

Blitz. We got Blitz. Which together with the faster-CD 3-step PB was the best thing we got since making TK usable as more than just an Execute/pre-cutscene skill and Greased Lightning therefore a real resource instead of a pre-fight tax in late Stormblood (then ruined by Shadowbringers, which then removed GL too after realizing they'd neutered any point of it existing).

Endwalker MNK was straight up better designed (thematic, distinct, smooth but interesting in practice, more capable of nuance except perhaps in its opener) than Shadowbringers (especially late Shadowbringers) Monk.

Endwalker Monk was fine. Dawntrail Monk was where things went increasingly dull and mismatched. (Well, that and maybe in the transition from late Stormblood to Shadowbringers.)

Edit: Misinterpreted "6.0" as Endwalker (as a whole), not just its launch. Yes, that gap was the worst.