I did also notify the manufacturer, and was told the following:
"Our goods are not resin (chemically) bonded, but thermally (heat) bonded, which can allow a small amount of bearding to occur. However, bearding to the extent you described would be quite unusual. My best deduction is that the goods used in this quilt must have had an area that may not have been bonded properly. Unfortunately, we have no way of knowing exactly why this occurred. In addition, darker fabrics could be making the bearding appear even worse. The Wool Batting does not have a right or wrong side. We have made up some samples with yardage in our warehouse and washed and dried them and could not re-create this issue. Please keep in mind for the future that if you use thermal bonded wool again be sure to wash on a gentle cycle, using only cool water and a cool dryer. This should help prevent bearding."
2015 Pantone Quilt Challenge: Marsala! Adrianne/On The Windy Side and Anne/Play Crafts are co-hosting the challenge this year (read their posts here and here). This will be my 4th year participating, and you probably noticed that Marsala and I are getting along just fine. Whether you love it or have kept it at arm's length, I encourage you to explore the deets in Adrianne and Anne's posts and consider joining in. I predict we'll all be impressed when it's all said and done.