You don't think the concerns he listed about the instability of the network, current centralization of nodes, and the fact that one of the founders offered to buy his silence are legitimate complaints?
About centralization: IOTA is not any more centralised than Bitcoin where a very small number of people control most of the miners and exchanges.
The difference between IOTA and Bitcoin in that respect is that Bitcoin can only get worse whereas IOTA can only get better.
I don't believe that the founder of IOTA would buy OP's silence in such a blatant way. There are tons of people bashing IOTA all the time - The founder would go bankrupt if he tried to pay everyone off to buy their IOTA... And why would the founder want to acquire IOTA if it was in fact such a toxic asset as claimed by OP? It just doesn't add up.