Anybody who can come up with such an apt title as "Perfumed Princes of the Pentagon" can be forgiven a whole bunch of stuff, IMO.
The final years of our involvement in Vietnam led to the accuracy of the term "wasted"; our political and upper-echelon Pentagon ideas wasted a lot of heroic grunts. To me, with Hack's record of trying to take care of his men, it's no wonder he resigned in disgust.
For all that I was a REMF in 1954/1958, I've always believed that if you're gonna have a war, go for it hair, teeth and eyeballs. Anything less gets good folks wasted. But that's an IMO.
Whether or not he was correct in his various opinions, never forget that the focus of his concern was the well-being of all those guys "way down there" at the squad and company level. That doesn't seem to be all that big an issue for the Folks On High in today's world, as near as I can tell.
Hey, I don't figure I'm seeing perfection, even when I'm using the mirror while shaving. I don't really expect it others, either.
RIP, Hack...
Art