Do note that Voldemort cannot actually use Legilimency on Harry, due to magical resonance.
Not only would this be expected due to how the effect has manifested in the past, but EY has also confirmed that this was the original reason for the resonance in the first place.
It could be possible for a Death Eater to do so in his stead, but I do not think it at all likely without further orders from Voldemort, given his explicit desire for privacy in their conversation.
Regarding Dumbledore's decision, it could simply be that (due to the prophesy) he believed Harry the only one who could defeat Voldemort, and so the loss of Harry would mean that his own presence would be useless in that regard. Better a minuscule chance of saving the world than none at all.
I may be misinterpreting, but I thought the whole resonance business got cleared up when Voldemort lured Harry into shooting at him.
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 113.
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.)
IMPORTANT -- From the end of chapter 113: