I agree with you for the most part. In the case of Amin and Woj, it's hard to remain impartial and unbiased when someone is in your ear every time that anything that can be viewed negatively about an organization has the negative reinforced by a trusted colleague. Woj may get a piece about the Suns, say Watson's firing, and when he's talking with his peers at ESPN, one of them spins it in the worst possible way to point all fingers at Sarver for the disaster that was Earl Watson as head coach. Perhaps Woj didn't see it that way but it's hard for him to ignore when it's a colleague who does help you out on other things around the league.
I don't think it's hard to believe that one of Woj's co-workers constantly bashes a team and it's owner enough that eventually Woj starts viewing that team similarly. Amin suggesting it's Sarver's fault alone could cause Woj to look into that and there are plenty of people willing to rip Sarver whenever his name is brought up. So while he's trying to see if there is any fire behind the smoke that Amin is creating, all he gets are people ready to bash Sarver. It reinforces the negative when there wasn't one to begin with. Over time it just becomes, "Sarver is to blame for everything bad with the Suns. Everything good that happens is dumb luck".
That line of thinking is also echoed here, not just with Sarver but it was also done with McD. Rather than give him credit for some good picks like Booker and Warren, people will spin it how that's where they were projected to go so it really wasn't McD's scouting so much as him following the media. No credit is given to him for the pick even though part of the reason a player like Booker was projected to go to the Suns at that point is because that's the way the Suns were leaning and the people who create the mock drafts use that as a reason to place him where the Suns pick.