She was acquitted of several counts of wire fraud to defraud patients, but that does not mean harm was not found to customers. I haven’t been able to find the specific statute, but essentially the jury found that the prosecution didn’t prove all of the elements of that charge beyond a reasonable doubt. We’ll likely never know the details, jury deliberations are secret. But there was absolutely harm to patients. Balwani was also charged with patient fraud and WAS convicted on those counts.
It's a bit like convicting Al Capone for tax evasion.
The worst crime you can do is take money from a rich person.