One thing I think gets left out of these discussions is how much of a teacher's job (in many districts, even good ones) is motivating his or her students. Most students do best when they respect their teachers and want to impress them. You can't really replicate this remotely. The human connection is largely reliant of being in the same physical room.

This fact does not fall on one side or the other of any argument I see here. I expect it is completely compatible with integrating KA into a school curriculum or not. I just think it needs to be kept in mind.