I'm not the poster you quoted so I can't say exactly was meant by that, but I would think of it as just slowing down and choosing more basic options. Like, maybe don't worry too much about approaching or comboing, just focus on certain aspects at a time. Maybe just try to respond to their approaches instead of approaching them, and then just focusing on getting the edge guard every time instead of going for fancy gimps.
To take that even further, I kinda liked the idea Wobbles wrote about
here. Basically just try one move or strategy for matches at a time, just to get a thorough understanding of everything about it. Starting with something like that that's almost sub fundamental, and just building a strong understanding from there.
Anyway, I get that sort of experience in other fighters all the time, where I'm more focused on trying to learn my combos or do certain moves, and the other uneducated heathen just punches me when I'm busy trying to play. The way to get around that issue is just to practice a lot. Control of your character and tech stuff should be unconscious. Even if you mess up the techniques every time, keep going for them in real matches. It'll click after a while.