Why must we zone for quests?

[Zagen]

Currently at 47 attempts at Refresh Stearc Subligar on the Brygid the Stylist Strikes Back quest. And this would be 100,000x less annoying if I didn't have to walk back and forth constantly wasting time over and over.

But really, it isn't just this quest either i've never understood why other quests require you to zone to get the next part.

Maybe a dev can respond to this?

You answered your own question...