Yeah, that's all true, but the fixes are largely already there.
The Hollows is a great set of arcs all in one zone for low level players.
In Steel we have Graham Easton and Laura Lockhart. Also, Montague Castanella.
At 15 you can start running Faultline. At 20 Striga Isle and First Ward.
In Talos there's Roy Cooling, Keith Nance, and Jenni Adair.
In IP there's the Vigilante contact Braun. In Bricks there's another Vig contact and later there's Provost Marchand.
Then there's Croatoa, Night Ward, the Rikti War Zone, Cimerora (small though it is), and at 50 Dark Astoria.
Also, the Signature arcs sprinkled throughout the city.
I'm sure I'm leaving something out.
So, again, not to say any of your points are wrong, they're not, but to a large extent there are already fixes in place.