I can see him believing that it would be very difficult to get them to agree regardless.
Though, given the Drought of Living Death...
Naw, they still wouldn't want to leave him in Harry's care. Plus, then they might get all of his magical secrets (including Harry's (soul/mind's) magical heritage, rather than leaving them for Harry to use. Or they might Obliviate everything, depending on whether their paranoia wins over their greed.
Yes, that's a more direct objection.
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 116.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)