Originally Posted by Clistenes
I have wondered...maybe you can move the gates if they are small enough and bound to a portable object? Soon's gate was bound to a gem, so maybe he could move the gem to new location when needed; I doubt the gate was always located in Azure City's throne room, somebody would have noticed it ages ago (with the courtiers being obliterated by tendrils and all that, you know...).
It was made clear that the tower containing the throne room was built specifically to be able to contain the gemstone and the gate. The rift itself was a couple of hundred feet up in empty air when it was discovered, as the right-hand section of the third panel in #276 shows, so there wouldn't have been any courtiers taken out by tendrils--it was too high up!