Even worse than this idiotic reinvented Klingons idea is the show wants us to buy the idea that Sarek "adopted" a black female from earth and Spock had this human stepsister raised with him all this time that he never mentioned and we never heard about until Discovery. Naturally, the long lost stepsister is first officer of the Discovery and the "lead character" of the show.
Defenders of STD are trying to justify it by citing Sybok from Star Trek V (yes, pointing out what is widely considered to be one of the dumbest, most cringeworthy moments in Star Trek history to use as precedent for the new show). Audiences hated the idea of retroconning Spock with a fully Vulcan "half brother" in 1989, and they STILL hate it today, and that's why "Sybok" has NEVER been mentioned again SINCE Star Trek V.
Worse, as stupid as the concept for Sybok was, they at least had a valid explaination why Spock, Sarek, and everyone else had never mentioned Sybok once and always acted like Spock was an only child: Sybok had embraced emotion and was kicked off the Vulcan homework and ostracized by every Vulcan who ever knew him, so he was essentially dead to Sarek. I can't imagine they have a similar justification for nobody ever mentioning "Spock's human stepsister, Michael Burnham" before.
Bizarre thing, they keep trying to market this show by saying it takes place in the prime timeline and they're "strictly following canon", while everything they show us about Discovery demonstrates the exact opposite. This show has messed with the Klingon's and Spock's family free WORSE than the Abrams "reboot" did.
There is so much they could do, they could do anything, they have a whole galaxy, plenty of unexplored time in show’s canon as well as the post-Voyager “future”. And what do they come up with? Trumper Klingons (Klingons have been done to death, even if they had a good take on them) and Spock has a stepsister?
Why? Because people have heard of Klingons and Spock? Pathetic.