If forward camps weren't bugged and (fast) horses weren't so expensive, then we wouldn't see or hear so many complaints about travel times. And the further a keep is in your territory makes it harder for the enemy faction to get to, unless they are willing to expend a death to get there, and only if the keep is not being sieged.

Cyrodiil is huge, I get that. I commend it actually, but there are so many ways that you can improve run speed that this seems almost ludicrous poll.