"Every minute you avoid spending in a meeting is a minute you can get real work done instead."

I'm probably being a bit too nitpicky but this statement stuck out to me. Two sentences before that the author tells you to do x instead of having a meeting, so you're not going to get every minute back by simply not having meetings. There's no need to exaggerate like that.

Although I do agree meetings are time sinks, and are overused.