They are allowed to outsource their sewing. Remember Jay hired his sis to crochet for him? They have to provide receipts.
Someone on Blogging Project Runway made the point that this piece in in the gossip area of the magazine.
Also, someone posted a reply on this girl's myspace where Jeffrey addressed it and he seems to be quite confident sounding which I personally doubt he would be if any of this held water:
More than one person suggested this "leak" was done by Bravo themselves to hype up the show even more...which I could see happening