The loss of Job Quests, I feel, has altered the identity and impact that some jobs were building towards. With the job action trailer of 7.0, a lot of jobs are getting strange updates or changes that are not explained (SMN's new summon, SCH's strange transformation, etc). But more importantly, the lack of Job presence (outside of the occasional comment through dialogue...like patch content Reaper) negatively impacts the story.

The Dancer job, for example, would have been a perfect narrative reinforcement over the journey of Endwalker. We could have gotten confirmation of the Totentanz = Despair/Endsinger. We could have met other dancers outside of Troupe Falsiam. Gunbreaker could have had a Garlean parallel while we were in the capital who taught us techniques similar to what Gaius used during his boss fight.

The excuse provided for 'no more Job Quests' is that we, as the Warrior of Light, have exceeded our mentors. If that is true, then we simply could be mentoring the next generation ourselves.

Imagine a Scholar questline where we go to La Noscea and stumble upon an Adventurer who had just found a crystal of their own, and are seeking guidance to learn how to use it.
Or, meeting with Radovan and helping to teach a new recruit the importance of becoming a Gunbreaker.
X'run Tia is struggling with an individual student and is requesting our help with an instruction.

Not only would these quests expand the scope of where these jobs can be found, but it would make them a lot less common or 'lost'.

As a reward for completing these Job Quests, we could have an NPC from the questline (Radovan, R'anaa Mhigo, K'lyhia, X'run Tia, Curious Gorge) as Trust NPCs.