Let’s assume for sake of argument that it is accurate. How does this tool change run training? In the context of running, where this correlates to vO2, how is this better than just using a Daniels vdot table or another analogue for vO2?
Purely as a layman triathlete, I really don’t understand this argument. An accurate and precise powermeter for running seems to give me the same benefit as one for cycling, i.e., I can gauge my level of effort independently of the grade I’m running on. There’s very little ‘flat ground’ around here - everything I run on is slightly uphill or downhill. Targeting x pace is often a fool’s errand, and gauging short intervals by HR is useless, so why wouldn’t I want to be pacing by power instead?