But the comment I was responding to seemed to be using "stitch" in the way knitters use it, not the way sewists use it. No pattern drafting system can represent the stitches necessary to create a panel of knit fabric, that's simply not the level of abstraction they work at.
This thing isn't good but not for the reason of being unable to represent a one-strand mitten or whatever, which is what I think they were getting at.