This perspective has quite a few flaws. Does one need to be taking courses simultaneously to draw connections? Think about your own life and how you make connections all the time w/o being an immediate student of a particular area. You could make the argument, and there’s hundreds of years of evidence, that juggling multiple courses creates a forced prioritization and a student gives least attention to the subject they like the least or is most challenging. Many folks have made the point that the block approach more closely resembles project work in life: steady concentrated attention until the work is complete.
Of course all systems have flaws, I’m just not so sure this writer has crafted a very thoughtful critique.