Gerv's behavior would have led to him being fired a long time ago in any other company. He was a toxic employee. MoCo did him and his family a favor to keep him on the payroll until his death.
It would have been better to fire him when he was alive than to criticize him after he was dead. The former would have been productive, while the later is just distasteful.
Just speaking for myself here, but if someone would like to take adverse action against me, if they're willing to postpone it until after I'm dead, I'd vastly prefer that. Please and thank you. It makes no difference to me if you piss on my grave.
That being said, I sure as hell wouldn't write that obit, even for someone I hated. If I didn't have anything positive to say about the person, I wouldn't write anything. There is no upside to this kind of handling of the situation.