This reeks of a publicty stunt -- a spectacle. Whatever value is gained from this exercise, the integrity and credibility of those who orchestrated it is undermined when they seize the opportunity for self-congratulation: "Look what we did! Aren't we clever! And oh-so concerned with the well-being of our players!"
Keeping it in-house would have proven that the intent behind the exercise is genuinely for the players' benefit. Even then, there is still a damaging effect on trust. If they'll spy on you for this, what else will they do?