Coursera is based in the US and taught by US professors. Their teaching methods are based on US societal norms because that's what they believe to be most effective. If you disagree, you're free to not take their classes. You're also free to take your unique insight into cross-cultural education and start a competing site that embraces cheating - I'm sure the students from China/India/"Over There" that you stereotyped as cheaters will abandon Coursera in droves and flock to you. Good luck!