The point the parent comment is trying to make is that meetings are a waste of people's time. Most software engineers will agree that the majority of meetings are unproductive.
Most software engineers often fail to see value in things that aren't of immediate interest to them. That doesn't mean meetings are a waste of people's time.
I'm actually worried this is going to backfire massively precisely because people interpret it so liberally. I hope he realizes what judgment calls he's asking everyone to make.