I think this is true of so many of the things we debate on personnel, lineup changes, tactics, roster decisions, etc. Like everyone, I have opinions on every decision the team makes.
However, when we are watching from the outside and trying to decide what is "right", we can construct a narrative for both sides of most any debate because we are basing it on something like 25% actual information (and even that is subject to interpretation and many of us often disagree and interpret differently what we see on the field) and 75% filling in the grey space for what we don't know. For that 75%, we could all come up with a whole variety of explanations that sound credible, and which of them one assumes to be true often significantly tilts the conclusion.
I guess that is why, even when I get frustrated when PV keeps running Hernandez/White out at RB and playing Allen on the left, completely cuts Mix out of the team, etc., I do give him a lot of deference because he is presumably better at interpreting the 25% of stuff that I think I know, and inevitably has as more complete picture of the 75%.
But, I'll still keep coming here, making videos, etc. complaining about some of the decisions because its fun.