This is what irks, and saddens me most about applications of AI not improving outcomes. I suppose I should take some comfort that even Salman Khan couldn't crack this nut.
The idea of an AI tutor that could step-by-step customize an education plan to each student and patiently apply every approach to getting the students to understand each lesson, is such an attractive vision.
Both of my kids chafed under lock step pacing of lessons, even in a school where disruptive or unmotivated students were pretty much nonexistent.