I think I agree with the OP. Further I would postulate that if you needed to do this in some dynamic way I wouldn’t have gone this route at all. I think if you are going to destroy continuity I would have killed the servers and hard merged to even out population. Then capped the transfers for a set time. Say one month to allow for a cooling off period. This doesn’t fix the fact that there are those willing to move to win though. They don’t want a even fight they want to win. And there is nothing wrong with that its just life.
I think you may energize the game more by allowing server rankings to be based on multifaceted scoring. Sure WvW ranks but also PvE and PvP rankings. Allowing you to choose the game mode you like best while still helping your server. You could view the scores based on game mode or overall. Then just allow for track progression for all three games modes and walk away. After a few months figure out what has drawn people and what reenergizes the community. Does Anet really read these?? Oh well if they do someone tell Gaile I said Hi and I miss her from GW1. It was having chats
Best wishes all!