I'm like 90% sure that this works everytime when you do it, I was in a Dragon Souls raid today. We were about to do Spine of Deathwing, I was going to trade another person some tier tokens for a tier token head and but it didn't work because they were soulbound so I just closed the trade again. By the point the trade was closed, the event started exactly on the same time. Meanwhile all of the other players in my raid were teleported to DW, then some of them got DC meanwhile I was online and stood still on the boat left behind watching them disapear and being teleported into parachutes. I couldn't do anything, my mouse disapeared and I was freezed. I didn't even die, I was teleported to the spot where everyone died gets teleported on the boat, but yet I wasn't able to do anything.
The reason I share this is... because there might be something you can do with this perhaps? I mean... it could be nothing but, it just seemed really akward, since even one of the raid members got stuck at an akward position and wasn't able to move. So he had to ticket it to get out of there. I wish I could experiement more with this, and find by myself like... any kind of possible explore and stuff. But my raid continued on since the GM arrived shortly to help the person who got stuck out.