I suggest you look up what a vortex is because the vortex discovered by Slips actually fits the definition of one in the traditional sense.
At the risk of you just neglecting to look up the definition lets look at exactly what a vortex is:
"A situation where one player is continually able to force their opponent to make an unfavorable guess out of a combo or setup, resulting in the opponent getting caught in the same setup all over again."
Now technically with high enough execution you could get out of Cyrax's setup, just as you could with Summoner Quan Chi's. With Summoner it involves/involved precisely timed low then overhead. It wasn't technically a guess but the timing was so difficult that it was considered as such. If the term can be applied to Summoner Quan Chi's setup then it can be applied to Cyrax's because a vortex by definition doesn't need to involve an overhead/low mixup. It involves a guess and the guess for Cyrax was that tech window.
You should look up GGA Max.
He played pretty well in tournaments.
The next time you say absolutes like "there are no vortexes" make sure it's true. You didn't say "there are no vortexes from the top tier cast." Learn from this and reread what you type up to post, think about it with a level head, and remove your typical hyperbole from it before submission because it ALWAYS comes back to make you look stupid.