Yes, in a different version of the game. Not in Classic. A version of the game that is designed to preserve these features and functions.
You seem to be focused extremely heavily on questing. There are other open world activities. Questing does not make this unique. And it doesn’t require them to be 50 either. Neither of those matters.
But ONLY for the incursions (And the vendor is shared across all the zones so you can go to any of them for rep rewards). You don’t go to the nightmare incursions to do the Ashenvale event, to get quests for the rest of Ashenvale, to train your character, vendor and repair. It is not a one stop shop for all activity in the zone. It is a one stop shop for all activity in that SPECIFIC portal and that portal alone.
I don’t agree with you. I have given you plenty of examples. Don’t like SoD and their design philosophy go play something else. They already addressed this. Sorry not sorry.