I found this thread on QD Puff batting:
http://forum.apqs.com/index.php?/top...rs-dream-puff/
The manufacturing of batting has come a long ways in the last decade or two. It was recommended for the old-time wool battings that you completely encase the wool batting in cheesecloth before layering, to cut down on bearding. Hobbs wool batting and Quilter's Dream wool batting are now much more stable and highly unlikely to beard -- because they are manufactured with new processes. The same holds true for high quality polyester battings such as those from Hobbs and QD -- thermal bonding and other manufacturing processes have made them much less likely to beard.
Personally, I would think you are okay with the QD Puff -- especially if it was longarmed and you do not see any batting being pulled through the needle holes. There are never any guarantees, though.