You have a hard time understanding how other people might feel about things, I have noticed this before, maybe you lack empathy.
See, for the players it is easy to imagine they are uneasy about the current situation, there is an obvious and documented rift between the 2 star players, the level of play has dropped significantly in the past 6 weeks of game play, and we have an aging quasi-star who has been yanked around, most notably by "bench-gate", who also early on made it clear he did NOT want to play in Utah. In this climate, regardless of your wins, you think "damn, what is going on here", and that doubt starts to creep in.
It is pretty obvious that doubt has had a hold on the team as a whole for a while now, hence the fact that we have so much hero ball, no one seems to trust each other, and that has been a big part of our recent drop in play. So now, with everyone cooped up and nothing to do but ruminate, and the rift among the 2 stars not getting better, you see that one of the top leaders of the team has decided to look elsewhere.
It is very easy to imagine people in their sphere, cut off from the camaraderie of the team, relegated to the imperfect communication medium of social media, would see that as the ship starting to go down. They don't give a flying **** for stats at that point, it is an emotional thing. They do not sit back with a professor's cap on and go "I see that for Zanik this is a great opportunity and it has nothing to do with our team problems that have been a bane on us at the end of this season...**beep beep** *does compute* **beep beep**". People are emotional, and I have seen plenty of similar situations in the business world, and worked myself to quell the panic that sets in among the team, so to speak.
So yes, it is a very reasonable position to take. And a reason for some level of concern how this will be perceived among the team in general, and what the fall-out might be.