I think there is argument for equal culpability
If we are making the argument that the CEO of a football club like Arsenal has absolutely no authority, than what is he doing at the club?
If he's a good CEO would he not be able to get an equally well paid job elsewhere where he would not have his hands tied?
Whether Wenger is a control freak is a side issue, even Le Grove has questioned why Gazidis has not been able to exert any influence over Kroenke (given the argument is that Wenger can).
Now it could be that Ivan Gazidis is using Wenger's lack of standing with the fans to push for the kind of change he has wanted to impose for a while, but it's equally possible that Wenger doing everything has made his job easier and he stayed quiet until it was clear that as CEO he could no longer stay silent.
He's a PR guy and good at spin......but he's been de facto Wenger's boss longer than Kroenke has been majority share holder and yet at no time has there been any impression of Gazidis imposing any authority over Wenger.
Either way, blaming Gazidis in no way absolves Wenger - on one hand there should be no way his future is in his own hands, it should never be the case with a manager but the manager wants us to shoulder the burden of his fear of retirement. I don't believe for a second he is unaware that his ability is diminished, all he is thinking is i've given the last 20 years to this club and they owe me big time.