I saw that time too, and on the surface, it seems sort of concerning. But, IIRC, not only were they at elevation but it was 100 degrees too.
The GEN2 was in the low to mid 5 second range, and there's no reason to believe the GEN3 will be much different. The only comment I have heard from GEN3 owners is that there seems to be a lot more torque down low when compared to the GEN2. All that being said, I'm still expecting something in the 5 second range.
But, to your point, now we need someone to go prove it!