HE WAS the Home Player/Host, and the Home/Host is the responsible of the "game configuration", and the rules says that YOU HAVE TO SET THE MEDIC KIT SET TO "+"
And when you put the sinal of "+" all worms starts with 312 LP, but in this game worms started with 250 LP.
Thouson is not a little child. He could have mentioned that the scheme was not correct, but he didn't.
This means that he
agreed on the settings of the game. The settings were the same other games as well. The settings were the same in the games that Thouson hosted.
Therefor, I disagree that the schemes are the reason for Thouson getting a win. You've said yourself that Dmitry's position was better.
Dmitry is not asking for a win, he's asking for the games to be replayed. And I think he is right in asking.
Decision: games are to be replayed at the score of 1-0 for Thouson. Dmitry hosts, but he will use the scheme as told in the rules (that means a + handicap in health for both teams = 312 HP!)