RDF cds cause more problems than it fix

Today, I got pop for UP on RHC, and after first boss tank decided he doesn't want to deal with this dungeon, asked for kick and a second later probably realized he is doing something bannable and just left.
Now, everyone know that getting a new tank on an existing ID is almost impossible, so we just kicked one person, left and requeued RHC.
Few minutes later, me and the healer got a RHC pop, guess where? UP again! But now, me and the healer were on the old ID (one boss dead) and the rest of the group on a new ID (fresh dungeon), and going out and back in the dungeon didn't change it.
So, what do you do in this situation? Kick everyone and requeue? no! now you have to wait 5 minutes until you can kick someone, and then wait 10 more minutes until you can requeue. So basically, you get a 15 minutes deserter for getting a ****ed up dung.
This bugs used to happen once in a while before too, but a fast kick and requeue usually fixed it. Now, we can't even do that.