Appeals Committee. Disputed situations in tournaments.

The_, that's an interesting point, but I don't think a lag at the beginning of the turn would have had any impact on the situation. However, when you have 15-20 seconds to attack, but the game suddenly lags, and you lose about 8 seconds of the timer just because of the "unresponsiveness," that's a completely different situation. It's additional pressure on the player due to the software, at a critical moment. And as Dirty rightly pointed out, Hell's move is clearly visible in the stream (he definitely positioned himself in the passage), and he didn't manage to do it because he only had 5 seconds (instead of 13) to assess the situation and make a decision after the damage dealer's attack.