Yeah, DPR put up a post an hour ago and already >300 comments
The link is
https://www.adorama.com/car1.html
but expect it to be removed soon.
Seems to be a typo though as 1/1250s = 0.8 milliseconds and not micro second as on the website
No need for a mechanical shutter if 0.8ms and no global shutter DR/ISO compromises.
Seems to be aimed at the A9iii in a different ie 1 series form factor... but then again, the 1 series have always been a sports orientated machine rather than high resolution.
The Sony/Nikon flagships (A1/Z9) are both high resolution and speed so the definition of "flagship" has changed for them from just sports action at reasonable resolution.