Map Closed During META Due To Few Player?

[Aylok.8349]

I was in Drizzlewood about to start the Frost Citadel event. We got like 10 people? More or less. I know it might not enough to succeed but me with my friends would like to have a try since we've once broken the North entrance in Tarir with two people. But there's a timer jumped out set in 1min to close the map and transfer us to another map. I've seen closing map with a volunteer buff many times. But actually close a map for the first time. I can understand if the server really need to do this. Just is there a better way to handle this player-map relation? Like a manually map choose or what. It's really a little upset leaving a map like this.Is there anyone ran into this situation before?

[Friday.7864]

Next time put up a LFG entry called: At frost citadel, not fullPeople will join and the map won't try to close anymore. You simply need a certain number of players on a map for it to stay open.