No, it tells you to replace all Pokemon with Missingno after they faint. That doesn't mean you can go ahead and bring a Missingno with Earthquake to KO a Heatran. It very much did change the outcome of the battle as normally GGamer would not be able to use Heatran if it were KOed. I am allowing him to bring all his Pokemon to the next match, though, because you are not allowed to use a Missingno in battle. Just look at the example:
- Eo Ut Mortus beats Funkasaurus 1-0, with a Charmander left, so he can only use that Charmander vs. the next 9.9 player, Jirachee.
- Jirachee 6-0es Eo Ut Mortus. He can use his full team against LoLsquad's next player, Rewer.
- Rewer 5-0es Jirachee. He can only use those five Pokemon vs. his next opponent, Nachos.
- Rewer 1-0es Nachos. Team 9.9 has no players remaining.
- dice remains a bum.
Nowhere does it state that Eo Ut Mortus can use a Charmander and 5 Missingno. Rewer cannot use his 5 Pokemon and a Missingno. Missingno are simply placeholders and this is quite evident if you read the rules. Counterteaming is a part of this tournament (your team is free to counterteam GGamer). But yeah,
GGamer retains the 6-0.