It's been driven on while flat after being knifed though. So the cut would have split further than the original knife damage.
The OP said that the car was showing as having 32PSI several hours after he last drove it, so I can't see how it has been driven flat? I suspect the photos that OP has taken are maybe after it has driven a very short distance onto the road/a recovery truck as the sidewall scuffs aren't anywhere near as bad as you'd get if you properly drove on a flat tyre.
Also, if the OP was driving a car with severely flat tyres in a Tesla - he would know about it. There would be all sort of dings and bongs going off to let him know he needs to stop!
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