Has a single one of these…
Has a single one of these reports been even vaguely scientifically verified? As any long-term EV owner will tell you, what the 'guessometer' (range remaining/state-of-charge meter) says may differ wildly from reality. Most of these devices operate by measuring energy in to and out of the battery and over time the process becomes relatively unreliable. The usual unofficial fix is to simply drive the EV until it is virtually no longer driveable (where at least until 'turtle mode'), thus resetting 'the algorithm' and revealing a much more accurate state of battery health.