"I don’t yet have confirmed engagement data during each stream, but those who watched every stream and the attendee counters for each stated that the vast majority of viewers remained engaged for more than 70% of the shows’ duration and a significant number stayed on till the end of the livestream."

Bambuser Average View Time

Americas: 5M 47s
Asia: 3M 50s
Europe/Middle East/Africa: 6M 40s

Proof to me, Verb nailed it.

btw: 70% of an hour long event it 42 minutes. 7-10 times higher than Bambuser.