I'll go one step further: the failure of succession planning for such a large company is an abject failure of the BoD and Iger. From delaying his retirement time and time again, to letting go nearly half a dozen replacements, and then to think he'll be able to play in the sandbox when Chapek gets the blame. It's INSANE.
I do think though that there are a lot of publications going after Chapek because he isn't playing the game like Iger did. He isn't schmoozing or playing Hollywood, and I think these articles show it. What I worry about is the stuff they're talking about less - internal fissures, Yes Men, a creative drain, and customer frustration.