As the trickle of companies abandoning their booths at the rescheduled NAB Show intensified into a torrent, organizers have pulled the plug on the Las Vegas event with three weeks to go. In the wake of perpetual interruptions to brick and mortar meet-ups, serious questions are being asked about the sustainability of such major trade shows and how the events sector can possibly survive repeat hammer blows? Faultline, for one, was overly optimistic about a return to travel normality by now, and we laid waste to our NAB 2021 plans just 24 hours before the event organizers themselves made the tough decision. The seed of doubt has now been firmly planted for the forthcoming IBC in December, and although the…