I would say that Chapman seems very confident that Buddha knew the answers to everything. And of course, Buddha couldn’t know about the moral philosophy that happened later, so there is neither agreement, nor disagreement.
Chapman definitely advocates for Buddhism and Buddhist-style practices, but he is also critical of Buddhism. In this article on Vividness (one of his other sites) he is very critical of traditional Buddhist morality: https://vividness.live/buddhist-morality-is-medieval
Chapman definitely advocates for Buddhism and Buddhist-style practices, but he is also critical of Buddhism. In this article on Vividness (one of his other sites) he is very critical of traditional Buddhist morality: https://vividness.live/buddhist-morality-is-medieval