So, won't the player get punished or the region gets taken or something? Just like that? Hmmm. I actually saw it used frequently in a lot of other continent, mostly they just switched to the realm taking over or their ally. It has happened in the war island, the far east etc, but we all thought that's part of the strategy.
Switching to the realm currently taking over is ok, it's called surrendering. It's the immediate switching back and forth which was an issue.