They were, Mimiron was empowered/created by Norgannon, and thus Gnome’s are the “grandchildren”/great-granchildren of Norgannon. You can do this for all the Titanic races; and for the Forsaken as the “grandchildren” of Zovaal + Primus.
The problem is:
Orcs were created by Aggramar, who unfortunately ended up looking Human.
In fact, the only member of any Pantheon we’ve seen so far that resembles a Horde race both physically and thematically is the Primus, for the Forsaken.
If An’she is planned to be revealed, there’s actually A LOT of unexplained Horde lore that is tied to the sun:
- The mysterious vision that Dath’remar had for Felo’melorn
- We didn’t see any phoenixes in the Firelands
- Rezan has “the power of the sun”
- The Hand of Valor that saved Vol’jin
- Shadowmoon Clan was probably “Elune”, but Nagrand’s Elemental Throne is day-themed; An’she could’ve been the “forger” of the First Ones who created the elements in the first place, thus tying him to all Shamanistic races (Orcs, Tauren, but also Dwarves)
- Hakkar, Mueh’zala, Rukhmar, Rezan, A’lar, Sethe could all have been tied to An’she given themes of Phoenixes, Red Moons (solar effect on the moon), and Wild Gods empowered by the sun/light.