In his defence, though he hasn't done anything, he hasn't fucked the club over either. So far he's providing apparently passive, debt-free investment.
However, if it does turn out that Wenger's comments re Nasri are a flanking manoeuvre relative to the board's position that he be sold, it's possible that's symptomatic of a hitherto unnoticed tendency to be even more miserly that Kroenke is introducing - or just a change in general in the relationship between board and Wenger.