It's amazing to me how much can be written (and published, and rewarded) about something so obvious. Parents, this is why your kids' tuition is so high.
If you want to see why tuition is high, look at administrators and construction I think.
Not every claim requires peer reviewed academia before you can have the courage of your convictions.
The people telling you to overwork are conmen and their useful idiots. They play the "your claims require peer revised sources, my claims are the bland common wisdom" game expertly. When they ask for sources, they're just hoping you don't have any, but if you do there's a slick dismissal up their sleeve.
The cost is probably like a couple megabytes on spread across a bunch of servers and, I suspect, a semester or so of work. Plus maybe somebody learned how to run this kind of experiment.
It just seems like a non-problem.
(Paper → … → Scientific Consensus) → Discourse → Popular Media → Management → Improvement?