My muscle memory is screwed up because of Tekken 7

In that game, I could sidestep with relative ease, and it was a good defensive option that I could do liberally. In Tekken 8, I do one sidestep and I now have 50+ dmg erased and I'm on the receiving end of an okizeme/mixup situation. Why do they punish you more for sidestepping in a 3D fighting game? What the fuck is the point of Tekken?

This shit is seriously pissing me off because the muscle memory that I've obtained for years is now worth jack shit. At this point, how do I "unlearn" Tekken 7 habits because it's preventing me from becoming better.