In those days the A9 is getting a lot of attention not because of the cameras features but because of some strange overheating behavior. It looks like the overheating warning gets triggered way too early while the camera really rarely shuts down. Sony is rumored to work on a fix for this.
Still, I am surprised Sony did not check this before they shipped out the camera. After all the overheating issues they had on previous camera models they really should have triple checked this!
https://www.youtube.com/watch?v=6U3MJtxMv30