Exactly, and while the story may revolve around Liu Kang, Scorpion and Sub-Zero are the poster-boys for everything and their story has to be inserted into every-goddamn-thing.
MK9 = retelling of Scorpion / Sub-Zero feud, MKX = Scorpion and Sub-Zero: The Start of A Bro-mance and MK11 = Scorpion and Sub-Zero: The Bro-mance continues.
As for Scorpion....
Deadly Alliance = trailer of Scorpion performing katas in first person view.
MK9 = Scorpion and Sub-Zero at each other's throats.... from the fucking main menu with Scorpion having the upper hand, to the collectible book ends, to pre-order shit to the game's story and CGI trailers... we get it Boon.

Injustice = Scorpion about to finish off Sub-Zero in his intro.
MKX = box cover featuring Scorpion, trailer featuring Sub-Zero and Scorpion fighting each other... Hmm, I wonder who's gonna win this match....Oh, that's right, the fucking studio mascot. Scorpion and Sub bury the hatchet and Scorpion finally kills off Quan Chi.
MK11 = trailer Scorpion (yet again) fighting against Raiden with Raiden killing off Scorpion only for YET ANOTHER Scorpion (UMK3) to show up, box art with (checks notes) ah, yes, Scorpion yet again.... Scorpion and Sub-Zero inserted again into the story because of course, special edition comes with mask / hood of... Scorpion.... pre-order skin for said MK11 special edition is for Scorpion.
There also was a planned Fire and Ice type of Shaolin Monks game with Sub-Zero and Scorpion (because of course), and there even was a concept art or 2 out for it.