They allowed him to speak. The mods also made it clear that unsubstantiated claims (from users or the guest) would not be productive and would devolve - yet he

They allowed him to speak. The mods also made it clear that unsubstantiated claims (from users or the guest) would not be productive and would devolve - yet he did it anyways. I think it's safe to say the audience was aware of his POV, so expected more than regurgitation.