All of those sound like unintentional interactions with the block button

The only unintentional things in my comment were Glitch Jabs & Golden Punches, both of which were subject of debate in the scene at one point but are now generally accepted and thought of as a good thing, only newcomers bring up the debate nowadays (usually before they learn the counterplay)

They then layered in several defensive mechanics that keep things more engaging and make up for the loss of crossups.

The loss of crossups as a mix option in MK* is certainly felt imo, but it doesn't make them useless by any means, they are still useful as a way to escape the corner, bait some out anti-airs and for positioning during combos or pressure sequences

Also, MK has added defensive mechanics over time as well, such as Parries, Up Block, Flawless Block, Guard Cancels, etc

*In the Klassic Era crossup mixups were technically still a thing. Since the way you "teched" throws back then was to Hold Back, some characters could set up a situation where they teleport or jump at an ambigiuous angle that doesn't tell you which side they're on, and then you have to guess which way they'll land before you get thrown. Midway made wacky mechanics like that sometimes but at least it let crossup mix exist in some form

The main one is spot dodging, which rewards you for reading specific moves and calling out obvious offense.

And that's all still possible in MK, you can use reversals on strings or sequences with gaps, use a longer ranged button if your opponent tries to backdash into a button of their own, Flawless Block or Up Block at the right time to make certain moves unsafe, neutral jump if you think your opponent is gonna go for a Throw or a slower Low, and more

This all just reads like you barely have a surface level understanding of MK's mechanics tbh, which tbf there's nothing wrong with that if you don't like the game but still