That’s a big question there.
Worse, Shaman’s have seen a real decline in power since the Cata Thrall era for some reason. We’re essentially worse at Fire and Water manipulation than Mages, and worse than Wind manipulation that Druids, with far more restrictions. Its pretty much Muln, Zekhan, Rehgar, and Kiro that fill that Horde Shaman roster atm. Two of them new, two of them haven’t been seen since Legion.
And yeah to your other points. Its very strange how much the Horde seems to operate in an entirely different genre of fantasy than the Alliance when looking at its characters and themes Its also fascinating how we’re the ones villain batted all the time, despite that fact.