>>>The Rebbe often discussed the questions that were asked in the kovtzim, and clarified and answered.
If he felt like answering he did. And if he choose not to he did not. No one in Chabad was able to challenge him personally on what he said. No one asked him kashes on a shvera sugya or tosfos in a venue where he was being put on the spot. Certainly no one went over to him and asked him “how could you say …when…?” And I don’t mean question him a hostile way. I mean not even in the derech of talmidey chachomim discussing the sugya.