I view it as a sign that Blizzard has gotten lazy in all honestly.
For example when Garrosh was made Warchief Blizzard went out of their way to make him a larger than life figure. You had NPCs talking about his eyes being on us, him appearing in Stonetalon, the Shattering novel helped build up and even revealed that their were rumors that Garrosh personally killed the Lich King.
They made Garrosh a larger than life figure in a sense and those with large shadows have plenty of people who will want to stand within those shadows. Plus they started showing off the orc first mindset here and there, which served as creating a logical reason on why Garrosh had loyalists in the end.
Where as Sylvanas has the loyalty of the people because Blizzard has Lorâthemar said so.
Furthermore when Garrosh was Warchief we saw the schism that was being created within the Horde. You had the conflict between Garrosh and Volâjin revealed in the Echo Isles, Garrosh and Sylvanas clashing in Silverpine Forest, and then you had the NPCs here and there that had a preference. Like Durotar has two NPCs together who were in disagreement with one another because the shaman preferred Thrallâs way and the warrior preferred Garroshâs way.
Where here Lorâthemar mentions that Teldrassil created a schism within the Horde but it wasnât shown. The closet we got to that was Saurfang going on his own and it just felt more like a nod toward the schism created within the player base.
The resurrection of Derek Proudmoore. Valtrois was reminded of the Burning Legion because of what Sylvanas did, Talanji outright admits to being reminded of Zul by it, and caused Baine and Zelling to liberate Derek and return him to Jaina.
Both the Horde and Alliance helped the Pandaren deal with the Sha, Mantid, Lei Shen, etc⌠and even before that during the war in Cataclysm Volâjin warned everyone about the Zandalari backing the Amani and Gurubashi. He even sent envoys to Stormwind about the Gurubashi threat. Volâjin was risking his life by warning the Alliance and the uniting with the other faction against the threats in Pandaren was risked putting us on Garroshâs hit list.