I have no doubt it is the best option. For certain people. But why impose a single way to learn, when there is no such a thing as a "single size fit them all" learning experience? All the more when there are alternative options.
Nah. The people expect EdTech to allow children to find their own suitable learning style with only babysitter oversight. But no teacher wants to "demote" themselves to being a babysitter, nor do the administrators want to become seen as running a daycare, so you end up with https://news.ycombinator.com/item?id=42116365.
We can't expect teachers to provide a good environment for students who are good at self paced learning, and students who need structure in the same classroom. But we might be able to have classrooms that lean one way or another...