This is not zm but ze, it is not like they will cade there and win the round staying there. IF what steamer said is true it would have been putted in the rules a long time ago.( I mean i have seen many admins passing by and even clan and this was never enforced) There is a 10% chance maybe it will work out, and still then you need to finish 1 more level. I just don't see why it should be forbidden.
Only the best of the best can pull it off, and even then they should not have any noobs nearby. This will just be another rule which is clearly not needed.