What percentage of students are doing this?
Probably every student taking an economics course.
Two years ago, I took Microeconomics and Macroeconomics courses. They were pretty exclusively presentations of formulae and the reasoning behind those formulae. No discussions of capitalism versus communism. I would've preferred that: memorizing formula after formula got boring, fast.
This is good.....kind of a "we report, you decide" ethos...which is what they should have been doing all along.