The idea of FCM is to control where the over population goes as well as relieve the realm that they are leaving. If people could go anywhere it would just make a secondary realm over populated and have queues. It’s just not possible to give people free reign on where they want to go.
If a good chunk of people from the busy realms had taken FCM then the new realms wouldn’t be perceived as being quiet. FCM is always one of those things players want but they want other players to take it. I can totally understand why someone wants to risk staying put and not move. However they have offered the option.
Sadly until we have paid transfers there is no player option to choose a destination. The AMA seemed to indicate that this wouldn’t be something they’d offer until more players had reached 60.
FCM is up again soon.