I hope this is a straight forward question, so here goes.
Let's say that I'm playing as Jin and I'm pressuring my opponent. I do 5B, 5C then jump cancel into j.B and j.2C and blah blah blah. They would naturally see me jump after 5C and block high, right? Why is it that if I were to jump cancel 5C, do nothing, then air-dash before I land and do something like j.2C and j.D, it works more often than it should? I think Ragna has something similar where he ends his corner combo with a 3C and jump cancels that. If the opponent neutral techs, Ragna can airdash j.C, j.D and pick up a combo from that because the opponent would usually be blocking low.
Why is it that most people end up blocking low if the pressuring opponent does the airdash low to the ground and do an air normal? Is it similar to how sometimes you would do a landing j.B as Ragna and go straight into 6B since most people are trained to block low? Or is it because when you air-dash before you land, people think they should block low because enough time has passed for them to block an air normal while standing up, and it's time for them to block low since they had enough time to land and do a low attack?
Another thing I don't get is how running into the opponent and then doing a DP or a throw-invulnerable move works. Like, I would land a 3C knockdown as Jin, the opponent techs, I run into him for about a second, then do a 6B. The opponent usually tries to throw break and I jump over that and land a CH 6B. Or I do the same thing as Ragna but do a DP instead.
Sorry if I'm making these questions more complicated than they already are. I want to know exactly why a lot of people fail to counter these even though they should be really simple to block. Like, the mindgames behind these mix-up tricks?