Player feels he's being treated unfairly

[Stubbed Tongue]

Dieties are not all powerful in D&D. They do have limited ability to sense reality. If Kord was too far away from the party's entry point, he wouldn't even know they had entered his domain unless they said his name. I also believe that unless the diety in question is a paladin, they don't have an innate ability to detect alignments either. Its not so much fighting and getting better or being threatened by the player. Its dirty fighting (which is against Kords Dogma) and trying to infuse pure evil energy into a Good-aligned plane.

Hmmm, I see your point. I think perhaps dispelling the unhallow and letting the fight continue would have made the most sense. Or even letting it go on unchanged. That's what I would have had the avatar do.

Oh well, everyone DMs different. In either case the player shouldn't feel cheated he lost nothing but some time as others have mentioned.