it's a recording of a live talk they did durring a monthly meetup. first one in this format and first recorded. so best guess is no one thought to have a mic for the q&a. theres also a priority to respect anonymity in mspmesh so i suppose rhe editor could have cut the questioners voice out for that.
i agree the q&a transitions were awkward though. it sounds like the group wants to do more sessions like this to dive deeper. i'll pass the q&a feedback to them.