In a webcast the speaker would just be Sonny and Perhaps Josh. The questions would be submitted via the webcast (eg typed by people participating and listening) then moderated and handed off the the speaker to answer
good points
A webcast would be better. probably with a small video tour of the manufacturing facility. and have it given days in advance so the moderator has time to receive questions to vet them before BFL answers them. as i believe there would be many many questions.
so moderating them live would be harder to achieve and slow down the flow of the webcast. also it would give BFL time to prep for the kind of things their customers want answers to.
so hopefully there would not be a ' why do you need to know this ' reply.