In my 5 years of University in Germany, probably 95% of my courses had at least 300 students and there are exactly 2 professors who know me as more than "the random person who just raised his hand". Simply recording the lecture with a camera and putting the content online would have already been a huge improvement. Obviously closer supervision/contact with professors is a superior model, but sentences like "these students need engagement with their teachers to feel comfortable and to succeed" sound almost laughable from a German perspective. Would I have enjoyed the personal experience of a good US school? Probably yes. Would paying $20,000 per year in tuition for the privilege instead of no tuition at all have been worth it? In my case, definately not!