Nah it isn't. Rhlor is being sincere, I just think like @MyWholeLifeIsThunder said - he may not realize the implications of what he's asking for.
I think sometimes people don't realize how it comes off from what they're saying.
There is no point for Auric to change his allegiance and his entire point is that every High Elf and Blood Elf should be 'a whole' once more as they're all "children of Silvermoon".
But, as we'll see with Shadowlands, there's going to be High Elves fighting for the Alliance and High Elves fighting for the Horde. This shows that not every High Elf came back to join up with Blood Elves therefore the "children of Silvermoon" aren't united fully at all, which is Auric's goal/dream.
Also wanna point out, aside from Alleria and Vereesa, even Umbric himself has stated that "Alliance are where our people belong" so there's definitely a pattern of a portion of the high elf race feeling that Alliance is where they all should be.
- - - Updated - - -
As we've seen with some of the new leaders, changing factions isn't taken lightly. Calia didn't go Horde, Baine didn't go Alliance.
Auric isn't simply going to go Horde just because some High Elves decide to return to Silvermoon/Blood Elves.
But I also wanted to avenge the destruction of the Sunwell! and I suppose that wanting to protect the sunwell is a reason to join the blood elves when alleria almost destroyed it. but I repeat I think he is the character that can best be a representative of the high elves of quelthalas!
If I were trolling I would name characters with a greater connection to the alliance and I do not think that someone like Jalinde Summerdrake or ranger lord hawkspear should fulfill that role, much less others like Vereesa who should be one of the leaders of the Thalassianos of the alliance with alleria and umbric!
I think of auric because I saw him fulfill the role of representative and he wanted the children of silvermoon to be united, instead people like hawkspear deeply hate the horde!and never imagine seeing him on silvermoon fulfilling that role!
- - - Updated - - -
I thought you were saying who could be the character representing the high elves in the alliance!
- - - Updated - - -
mop was 4 years before legion
Well in that case Blizzard was incentivized to do so due to the Horde's population at the time and they added in game lore to justify the Blood Elves joining the Horde (alliance spies and hostile actions vs. forsaken assistance of Blood interests in the Ghostlands + Sylvanas Windrunner being a respected hero of Silvermoon). So it wasn't "for no reason".
- - - Updated - - -
Understood. I'll take your word for it then
Dude I don't care what you think should happen. People are simply explaining to you it doesn't make sense for the NPC you're talking about when they're already faction-affiliated to the opposite warring faction, aka Alliance. And they themselves (Auric himself) haven't been given a reason to change from their neutral position.
Again, your headcanon isn't enough, and people are just saying there's no real reason for him to switch. They're also ok with it happening if it does, but the way you're speaking it's like a forgone conclusion already - it is not.
Also I said you were being sincere.
Just you're not realizing how you're coming off to others and it's showing here as well.
In the Magni comic published around the start of Legion it was said that Magni turned to stone 4 years ago, thus Cataclysm happened 4 years before Legion. Cataclysm lasted 2 years as stated in the Ultimate Visual Guide, thus the other 2 years would have been MoP and WoD.
Yet it did not seem to bother Theron in BfA, when he valiantly teamed up and fought side by side with Jaina in patch 8.2, and once again sided with the Alliance against a corrupt warchief.
The blood elves hatred for the Alliance is overrated by their fans, really. Storywise it is clear that they have no problem teaming up with the Alliance.
I'm not saying they have problems teaming up, just when they tried to re-join the Alliance it went awry. Naturally, Theron and other Blood Elves will work with the Alliance, as Blizzard acknowledges grudges only when it suits them. But we're getting off topic.
I wouldn't want Auric as a High Elf rep for the Horde, since he seems to prefer the Alliance. Isn't there some other appropriate High Elf kicking around to use?