HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

I think a good half of the players wouldn't agree. [del]And the bad ones would even swear.[/del]
The issue, in my opinion, lies in your attitude – "anything that's done in a way that's inconvenient for me is a bug." This is equivalent to the well-known calls for the extermination of water artifacts, mapmakers, and obelisks – this has long been settled.

Of course, this is more like a technical error than a bug – it's like missing a letter in some description. It just needs to be fixed as it should be. And, most likely, some of those who know might not agree, and that's just out of spite, and only at first. The other half – those who don't know – won't even notice. By the way, this makes the question "Why is Necropolis so strong?" less acute. (And it's a funny point, especially for online play, when universities offer to buy Necromancy – because it can't be bought by any mortal anyway, but Necromancers already have it).