As someone who has taught in formal and informal settings, the promise of EdTech was amazing, but the delivery has not really been that good.
To me, a lot of the companies in the space seem to be more concerned with how to maximize dollars sent to them and not as much about how things are improving or better with technology. Tech should be a tool to help the learning, it doesn't have to be each and every part, and I feel like the ultimate goal of at least some of the companies was to create an all-in-one solution for every problem.