I like the samurai guitarist theory. They didn't use landr but suno mastering software. The difference being landr let's the chatbot control normal mastering tools (eq, limiter, etc), whereas suno recreates the track with the changes done to it (which leaves it more vulnerable to ai hallucinations). Not that I like any of it especially their response, but that explanation accounts for just about everything including their insistence that it wasn't artificially generated (if they have ignorance of how the suno mastering software works.