What the article saying isn't specified to MOOC, i.e. think about continuous integration vs code review - they are not contradictory. MOOC is not going to repl

What the article saying isn't specified to MOOC, i.e. think about continuous integration vs code review - they are not contradictory. MOOC is not going to replace formal education and I think the "limitations" mentioned are perfectly acceptable due to the issues of costs and incentives involved, e.g. In the Coursera's Scala course, there are more than 10K+ weekly assignment submissions, you must need a scalable assessment method. (The grader is not bad in fact, i.e. knows cyclomatic complexity, warn if you use mutable collections etc)