Paddiegravity was still a thing before mr isaac newton figured out how it worked. you don't need to know how something occurs in order for it to actually be occurring. any genuine experiment within the game will display the fact that crouching makes you go farther when taking knockback damage (for one reason or another), just because you can't find it in the code doesn't take away from that very fact.
I was literally asking for people to experiment, and i said multiple times that I wanted to run the experiment and in fact I did. Ondkaja was the one who actually wanted to answer the question, everyone else wanted to throw a hissy fit.