It deals with the Phoenix Veterans Affairs Health Care system, and the Phoenix Veterans Affairs Health Care system only.
More specifically, since hospital care is at issue, it deals specifically with the Carl T. Hayden Veterans Affairs Medical Center - the only hospital in the Phoenix system.
You (not just you - pretty much every "you" weighing in on this topic) are extrapolating a local issue out to be a national problem - and it isn't.
For the most part, and for the overwhelming majority of veterans, the VA system provides awesome care.
What you're doing is tantamount to reading an article about a single private hospital, that's part of a larger private hospital network, being sued for malpractice and jumping to the conclusion that "this is what you get when you opt for private healthcare".
And make no mistake, private hospitals are sued for malpractice every single day.