I wrote a zip decompressor many years ago, the compression side wasn't really much of a target, because the focus was on compressing with a more speed focused algorithm. At the time it was a pretty distinct portion of my decompression pass. I didn't know they were picking matches based on the compressed size vs just longest match, but I guess it makes sense, but I don't see why that "intertwines" it anymore than any other adjustment one makes to how one finds matches (which is AFAIK generally the largest change in all the LZ variations).

edit: Just as a note, actually doing it as two distinct passes rather than at the same time would be silly since its going to significantly slow it down. So just because its doing the entire thing as a single "pass" doesn't count IMHO.