On Bad Weather DNFs

Observation: Over the last couple of years a trend emerged that had elite runners focus specifically in ‘heat training’. We heard of sauna sessions, indoor overall treadmill runs and optimizing our hats, packs and shirts to allow us to carry ice packs on various parts of our bodies. But this year several events have seen really unseasonal weather, and with it several high profile DNFs that could be, or were directly attributed to the cold temps, the bad weather, and general lousy conditions. Have the elites overcorrected and focused too much on optimizing their racing on dealing with the heat and aren’t preparing themselves enough to deal with the reverse conditions? Are we minimizing our gear and clothing too much and ending up unprepared to ‘grind it out’ in unforeseen conditions?