To be fair - whenever I see someone make a suggestion to add something cosmetic & fun to the game – Which addresses lore & celebrates it, there’s always someone that whinges that it’s “Not fair.” or “Greedy” of the opposing faction. Even if they propose something to give to the other!!
Heck, take this thread for example: 'Embrace of the Loa' Followers respect & Acknowledgement
Typically, someone starts raging it’s ‘gluttonous’, unfair etc yadayadayada.
I personally think having more addressing matters or references made to lore would be magnificent & beneficial to the game. It would make players curious. I mean, a part of what got me into the lore was people playing the trivia in Goldshire and I was curious to know more (lol) - For my friend it was NPCs making references to their artifact weapons.
Here’s to hoping we get to see some classic ole’ characters in Shadowlands; and multiple references too. 
For Sylvanas loyalists, it’s revealed that Sylvanas used Ashvane to make a deal with Azshara – To free N’Zoth and bring about large amounts of death to feed into the Shadowlands.