People seriously get bent out of shape about this?
We say we want players to be honest. Do you think any players, in their heart of hearts, believe the old canary about 'fans pay their money, they can boo if they want'.
That's boilerplate nonsense.
When it comes to a coach, most fans are utter troglodytes. Look at the level of 90% of the discourse on hfboards and then consider that the population here self-identifies as 'hard core fans'.
So for a player to stand-up for his coach against mouth breathers who are drunkenly yelling about a dynamic they have very little idea of (having not been in the room) is a good thing for his dressing room.
"Oh no, he disagreed with the fans, how sacrosanct!"
Do you want honesty or nonsense?
"Yes, they're right. Most of them have never played and watch like 50% of the games out of one eye while talking to somebody, but they know far far more en masse than the athletes and coaches in this room who have devoted their entire lives to this profession. Also, we are supported by a billion dollar organization that gets us all of the info we need and supports us in just about every way, but somehow we don't have the same intuition as that divorced Dad eating his 9th chil-dog today".