At the time of the attack, Dark was absolutely certain that he had entered someone else's territory.
However, he couldn't be completely sure whether Adel was currently in someone else's territory.
Covering up his obvious violation (even if unintentional) with a possible violation by his opponent and "giving him a free pass" is, at the very least, unsportsmanlike, and in the case of a tournament judge, it's simply unacceptable! If he saw that he accidentally trespassed, he should have written something like, "I accidentally entered, I won't go there, no auto-move," that's how a judge should act, not whine about an auto-move while claiming that the opponent violated the rules.
If, at the moment the controversial situation arose, we had simply saved the game and given the save file to the judges to review, everyone would have calmly accepted any decision they made.
Because after discovering the gray bears, he didn't move Adel anymore but passed the turn. Therefore, he can say with a clear conscience that he decided to think about the situation during the opponent's turn, so as not to waste time.