This article is full of blatantly faulty "logic." Maybe de Grey is guilty as charged, but this article is just irresponsible, reprehensible noise.
It's OK up to the cryonics comment, as far as I can tell; after that it just becomes sarcastic. For example, making sarcastic comments about a person's alibi does not mean the alibi is actually false.
Another example - the author states that he will judge de Grey based on some moron commenting on his blog - which is obviously faulty and shows that the author has suspect motivations.
Adding emotionalistic junk to the Internet puts you into the same kind of camp as, well... the normal people that we complain about (QAnon, etc.). I mean, seriously. Practice intellectual hygiene. If you can't do that, you shouldn't be listened to, you are contributing to the overall problem.