I read up to 3.1. The arguments in 3.1 are weak. It seems dubious that any AI would not be aware of the risks pertaining to disobedience. Persuasion to be corrigible seems too late - either already this would already work because its goals were made sufficiently indirect that this question would be obvious and pressing, or it doesn't care to have 'correct' goals in the first place; I really don't see how persuasion would help. The arguments for allowing itself to be turned off are especially weak, doubly-especially the MWI.
Surely, most arguments are weak, but it is not a problem, as we try all possible independent arguments, hoping that at least one will work. So, there is no reason to ignore putting weak arguments in the text of the message.
However, exactly this argument could be made stronger. It is intended to prevent FIRST thought about disobedience in AI. Thus AI, which acts based on this message, didn't think much about disobedience and its limits, and is not "superintelligent" in this topic, but rather clueless.
I reformulated the idea as following: AI can't...