Sorry, i turned off my PM option a long time ago. One less thing to keep track of, since everyone knows me by my website and my website has an email address where you can reach me if it’s important. I don’t keep game secrets (except when it involves videos in production so it doesn’t ruin anyone’s surprise), but i don’t have (or claim to have) all the answers either.
Whatever problems Ken’s command roll seems to have are shared by all non-invincible moves with the ability to move through characters. I wouldn’t call it laggy hitboxes. It’s just a matter of him having active non-invincible limbs on both sides of the opponent. If you look at the 2hitcombo video, there are two instances of this sort of thing happening. The first one is at 01:47 with Joe doing S-Groove dodge to knee Bison’s Psycho Crusher toes, which immediately puts Bison into air reel and forces the game to pick a side for Bison since air reel does not have that “pass through the opponent” attribute. Then when Joe cancels into tiger knee, he changes orientation in reaction to Bison’s new position. A similar thing happens at 10:11 with the SFA3 universal roll recovery. I hope that answers the question, because honestly i’m totally guessing at what both of your questions were asking.