But then, Musk knowing vote counting computers better than anyone isn't true either (though Musk may be arrogant enough to think it is).
So I think this is just Trump throwing out fact-free hot air that he thinks makes him look good.
He's the kind of guy that robs a bank and comes to the office the next day driving a Ferrari.
A miasma inseparably blurring the lines between malice and incompetence, lies and ignorance, culpability and insanity, condensing into a greasy alloy which is definitely some amount of evil yet not worth anybody's time to separate and assay.
[0] "Never attribute to malice that which is adequately explained by stupidity."
He is:
https://www.nbcnews.com/tech/tech-news/musk-pushes-debunked-...
Musk wouldn't trust a computer program to count votes, but he does want you to trust a computer program to drive a Tesla.