AI cheating on single-player maps.

This isn't cheating at all, but rather actions in accordance with the game's rules: the cast spell Flight lasts until the end of the turn. On the map "007 chases Dr No," this is exactly what you have to do to defeat one enemy hero, in precise accordance with the author's intention – otherwise, it's simply impossible. Are you even a player, or just a spectator? If tournament organizers didn't want this, they would have banned Flight and Dimension Door altogether (in fan-made "one-on-one" games, the rules can be anything the players agree on). And, of course, if spectators can see it, then it certainly isn't cheating.