I think many interpreted Don's description of the wind as strengthening to the point where flattening the sails or even reefing would be necessary to reduce healing and keep the boat from being over-powered.
He later suggested that the winds where increasing merely from light to slightly stronger breeze (maybe 12 knots) with a corresponding increase in the choppiness of the water. In this event, the boat isn't in danger of being over-powered, but powering up the sails would be helpful to power through the chop. Thus, the answer he was driving for was to increase the draft and move draft forward to increase drive through the rougher water ... like shifting into a lower gear and driving at higher rpm.