He did at first, but what Peck (and his buddies L.Q. Jones, R.G. Armstrong, and James Coburn) really did with this movie was use it to promote his image as a Hollywood "bad-boy" who was always running into trouble with "The Man". Post-"Wild Bunch", he always promoted this film as a lost masterpiece taken away from him by the evil stuidio (however questionable that assertion may be), which helped make the Legends of Peckinpah and Major Dundee what they are today.
"Give thanks to God, Brighton, that when he made you a fool he gave you a fool's face."
I have heard him say that, but one does have to take a bit of what Peckinpah says with a grain of salt. He was a brilliant filmmaker, but he was also probably certifiably out of his mind.