No, you are claiming that and saying that that is their standard. It's a straw man, which is a dishonest form of argument. Your arguments here are without merit. If you want to succeed with your tutoring company you need to establish yourself as a reliable and honest person, not someone trotting out absurd self serving arguments attacking other ventures that you incorrectly and very foolishly see as your enemy.
To succeed focus on your product, make it good, and show how it benefits people and is worth paying for. Focusing on these other people instead is a waste of your time and shows that you presently don't understand either what to do to succeed in your own market, or how to run a startup business. You might take what I am saying as criticism, but it is highly targeted and good advice. You should think about it. Ignore it at your own peril.
The enrollment is around 39,000 and I'm sure the completion will be low. People worldwide and of all skill levels are welcome to ignore the prerequisite guidelines and there's no cost to sign up. I bet twenty thousand didn't make it past week one - either discovering how difficult the class is, or losing interest since they only signed up on a whim anyway. This low barrier to entry probably inflates enrollment considerably compared to a traditional school.
There is a human element you did not address in your article. The discussion forum for the class is very active and full of enthusiastic students helping each other, asking questions, sharing resources, posting recordings of their music work, providing suggestions to the Coursera staff about curriculum improvements (many of which have been implemented already.) So it's not all robots.