(Note: This is a bit long and obviously just my opinions based on personal experience and observations of high level play like MKJavier. I'm a longtime Scorp fan but mediocre skill level) The problem with Scorpion is that without kameo he is totally optimized for two things:
1. Punishing mistakes. Which is great except at high level play or against someone like my friend who has really good defense (his offense is lacking so he plays more turtle/hit and run/keep away style). Opening them up practically requires Kameo as most of his good attacks are all high. Otherwise you hope to just chip them to death, which yeah with Cyrax/Sektor you can do decently, but it isn't really the most satisfying playstyle (again imo). The best punishing tool he has (up close at least) is the fast, long reach, standing 2 or 2,1xSpecial.
2. ANTI-AIR Grandmaster? This is actually I think his strongest area and where I think the devs put all of their focus in their design philosophy with Scorpion. The changes to his teleport being straight movement and ex in air leading to air kombos. Also if you land a jump kick and hitconfirm into meterless teleport low to the ground you can land and connect with standing 1 (or 2 as well I think) into standing spear for kombo. Also his B2xSpear is great anti-air. F4 is also decent but I personally prefer to B2xSpear. Then there's Air spear/Ex Spear. The far version can pull an opponent damn near full screen so if they are jumping full screen away for air fireballs or whatever reason if you're fast you can hop up and just yank them out of the air from almost any distance (for kombo if you EX it).
Sorry, you get the point, he can f you up if you go airborne. And THAT is the problem with this being his niche. I think they were expecting with the reintroduction of air kombos that players would be taking to the sky more. In the first KK they even talked about now having "air footsies". Except you can't air block so most people would see going crouching tiger, hidden dragon as too risky. I think air kombat was truly intended to be a bigger part of the game and he would have been oppressive had that been the case. With how many vampire fans there are and her being SOOO frequently requested I expected online to be infested with Nitaras, lol. Instead it is Smoke and soon Baraka, Raiden, and Cage since everyone says they are good so online will gravitate towards them expecting easy wins. If Nitara had been popular I'm pretty sure Scorpion would literally make her life hell. Low health, can heal but needs to hurt herself AND be able to land a specific special to do it, and almost always airborne? Yeah, I think it would be hard to be Nitara with a Rope Dart constantly coming at you from every angle and any distance. Now admittedly, I don't play her and am not knowledgeable on her so maybe I am wrong but that's my hot take based on observations of her and my limited practice mode testdrives. Anytime an opponent has tried coming at me from the air is when I have had the most success ripping them apart.
Thoughts on Scorpion being high tier in a game intended to have more air kombat? Am I just talking out my ass and sound like an idiot?