Viewing castles is a bug, of course; perhaps it would be fairer without it, but since it exists, let it be, and if it cannot be tracked, then it should be allowed! And using some patch that disables bugs is, in my opinion, a step toward TE! Let SoD be SoD!
Revealing the map also cannot be tracked. So I don't consider this argument in defense of the castle viewing bug to be all that decisive!