I think it does, but I find it unlikely it will reach any fine cloth shops. I once saw a polyester cloth at a tailor in Aqaba (Jordan) with a selvedge, which imitated a classic English selvedge. In regard to the H&S, I don't believe an "and" indicate much. Variation in logo is possible.
However, we should not dismiss the special joy and quality of finding a suit or jacket in a lovely lenght of cloth instead finding an appropriate piece of cloth for a jacket or suit we have in mind ... I think this thread demonstrates it.
Very good advice from zbromer.
Later in your bespoke life, bringing cloth to the tailor, which you want to have made up in a certain way, is more fun and rewarding than just picking from the tailor's cloth books.
Of course, everybody is necessary, but some are more equal than others That said, I feel my initial top 5 was can change rapidly. Will's and Michael Alden's increasing commercialism at the ASW and the LL, could push them out of the temple soon leaving room for Voxsartoria and another brave and independent arbiter.