There is a reason. The round time has expired. The pair didn't play. These are two players, one of whom remains active in the tournament thread and in dialogue with the judge.
The second one does not, and this is a fact known to the judge.
The second one is out because he essentially ignored the tournament and the judge. L - Logic.
The first (an experienced player already?) reported the fact after the event (the end of the round), and the second one is completely silent. That is, there are grounds for both. We are not engaging in cannibalism, especially since there is another problematic pair. The information from the first post has been accepted, but it has not been verified because there are no logs. I assume that the second one might suddenly appear and say that they had no correspondence with their opponent. And then both would be out.
And we can give bonus points for activity in the thread (increase their reputation) if anything.