You shouldn't judge people like that. Although this tournament has a grand name, the tournament rules and the templates used undermine the spirit of the tournament even more, so in many ways, one can understand him, especially since who knows what's going on in his life? After all, anything can happen...

Yes, I'm not arguing. Maybe it's the circumstances.
But then, he could say that the circumstances have changed and he can't continue the game.
But not to say that he doesn't want to play. After all, he is playing with another person.
The opponent is ready for the game, waiting, nervous, the game has started, and then - bam - and he says he doesn't want to continue.
There are more polite ways to end a game :)
It's just not very sporting, in my opinion.
IMHO, of course.