That sounds a lot like strategic secessions... If this wouldn't be, I have a hard time seeing what would.
So you would prefer that the regions too far from the capital went rogue, to avoid the appearance of the secession being "strategic"?
I think "strategic" should only apply to actual military strategy--seceding so that your capital is closer to the enemy, for instance. Seceding because the game ENCOURAGES compact realms is merely playing the way the game wants you to play.