The idea of a master portal room is awesome (and probably should have happened years ago)... but removing existing portals is just head-scratchingly dumb.
I guess they must be so desperate now (to show that people still play the game), that they are force-funneling everyone into the 2 major cities.
The old expansion cities will be even more deserted than they already are I would imagine.
Maybe that is the long-term plan though... weeding out the need for expansion cities entirely, so they don’t have to create new ones.