I believe lots of vendors offer versions of adaptive learning and testing, but I'm not sure who invented it. It seems like a useful tool, to my inexpert sense. My school has a well known program in teaching people to teach English as a second language, and my friends there speak highly of it.

But again, I am not saying the tech in the article is bad (if that's what you meant by a "well, what about this?" question), quite the opposite. I don't claim to know anything about Minerva's tech, I just don't believe the case is yet proved for its effectiveness when used with students who are at the fiftieth percentile.