Exams in classroom with all the time pressure is also an important part of education. May be they should be low percentage of grade to prevent too much stress but it's am important learning experience

I'd like to see some data on this. My general-ed recall is minimal, and in programming before school, I certainly learned a ton more by coding than by testing. That's my perception of my time in school, as well.

I disagree. Take home exams represent how work and progress occurs in the "real" world. There's nothing in the post education world that resembles in-person exams.

Maybe the medical profession is a counter example.