Not exactly sure why this comes as any kind of surprise to anyone - if you had doubts about that, it's only because you were kidding yourself.
There's always "the other side", and the other side of this issue is part of what makes the players like Snitker (and previously Bobby) so much - he's going to go to any length to make his players feel as comfortable as humanly possible, and he doesn't give a *amn what the numbers (or people outside the clubhouse) say.
We can disagree with that rationale all we'd like - that's often the difference in having a great clubhouse and a meh clubhouse. It's not going to have a direct bearing on the numbers, but it's tough to argue that it's probably easier to get better performance from a roster full of happy players than a group of guys who aren't necessarily looking forward to getting to the park every day.
Can you measure that? Of course not, but players constantly tell us that that kind of thing both exists and affects their performance - so tell them they're full of *hit, not posters on a message board.