Sorry, my mistake, I checked and the Battle of Red Mountain was between the Dwemer and Dunmer, no Nords were involved. . Wulfharth, being a big nationalist, probably tried to restore Nord control over Morrowind after his election and purging of Alessians in the 1E 480's. It was there that he died, during an attempted invasion of Morrowind that is not recorded (the Nords do this A LOT). I still think he was just a powerful tongue, maybe Dragonborn, but not an immortal God-King.
Edit: Gah!!! Reread that paragraph.
I think that, given the proof of both Lorkhan's (the heart) and Shor's existence (the hall of valor), and their drastically different natures, we can hypothesize with relative certainty that they are DIFFERENT BEINGS. Just as Alduin is neither an Aedra (I said he was a demigod of immense power, IN ADDITION to being the first and most powerful dragon) nor Akatosh, Shor and Lorkhan could be distinct spirits, perhaps related to one another (like Alduin and Akatosh). And Auriel probably ISN'T Akatosh, given Akatosh's "I care about everybody" nature and Auriel's "Only Mer matter" nature.
Shor's entire existence is based on the fact that he is Lorkhan. The entire Mannish mindset follows the idea that Shor/Shezarr taught the Aedra to sacrifice themselves for the creation of Mundus and the mortal races. And why oh why can't he be at the Hall of Valor? It's the land of the
dead. Shor is dead. Tsun is dead. His heart was ripped out in the Dawn Era by elven gods. If this was Wulfharh's propaganda, then there would be more evidence for your claims. In Skyrim, the Nords say "Shor's bones" a lot. To me, bones = death. http://imperial-library.info/content/shezarr-and-divinesThe Heart of the World refers to http://imperial-library.info/content/monomyth-altmeri-heart-world
Also, while Alduin is "the world-eater" and Paarthurnax and the Greybeards believe he will play a central role in the end of this world (Mundus) that is not to say that he is powerful enough to do it instantly. The Hero of Cyrodiil was destined to save Tamriel, but he had to jump through a whole lot of hoops to do so. By contrast, the "Five Songs..." say that Alduin can just eat time. Hmmm, funny how he never shows that ability in the main story of TES V. Ohhh wait, he does, except it is a specific Dragon shout that raises Dragons whose souls hadn't been devoured by a dragonborn, and that Alduin never uses a shout that effects an enemy's time adversely.
And? It backfired last time, why do the same trick twice when the Greybeards just bring the Children's God back? Futhermore, he appears to still be reeling from the dragonbreak.
So, by your logic, Jurgen Windcaller never existed. He based his entire teachings off the defeat at Red Mountain! But according to you, they were never there! Damn... Wulfharth believes went out of there way to build a tomb, and somehow Paarthurnaax and the Greybeards believe Nords were there. Yet there he is in Sovngarde. You could say it's a different battle at Red Mountain, but they would be made it more clear otherwise.
On the other hand, Ysmir isn't there.
Besides, here in Nordic mythology Akatosh is still a cyclic time god. He just has Alduin do the job for him.
Edit: Made my post somewhat less rude and a mistake I made. Sorry 'bout that.