Yep. Exactly that. Is that being discussed somewhere? Have a link?
I have similar (blurry) images with my camera pointed at my dash (warm 80+ degrees F, though).
I have some data related to this topic. I autocross my two i3's and have seen this power loss occur a few times within 60 seconds from cool start.
2017 i3 ReX (chipped to i3s) - never saw the power loss (also include an event in Lincoln, NE) despite using the motor like the i3S would and with...