Temple

The phrase "borrowed from M&M" is absurd in itself, as Heroes and M&M are essentially the same thing – the same world. Nothing was borrowed from Starcraft, except for the word "probe" in the unit's name. Therefore, this doesn't bring it any closer to being trash. There's nothing wrong with the elves from Warcraft, as long as they aren't elves plagiarized from Warcraft. The city corresponds to the spirit of Enroth, as it is a race from the world of M&M, and the concept is based on the world's lore.
Yes, it seems you didn't understand something.