Wool is back! Where had it gone?

The entire front lobby was filled with Herman Miller sofas covered in a new Marharm wool plaid in a dazzling array of colors that would have, and probably did, make any Scotsman weep with joy. High end jobbers HBF Textiles and Knoll Textiles introduced novel designs and qualities in wool that I took to be a clear sign that wool was on the ascendence again. But where had it gone? Why was this recent proliferation of wool so noteworthy?