Are we designing for the wrong learning goal?

I was interested in the results of the Berkowitz article, which found that children from families with math anxiety improved their understanding of math after playing with a math app at least once a week. However, playing with the app more than once a week did not further improve their math scores. This result made me wonder if it would be more beneficial to design educational apps more for exposure and quelling anxieties around certain topics than for comprehension. In other words, I wondered if we should be thinking of designing educational apps more in terms of priming learners to understand subjects as they are taught in school, rather than trying to use technology to emulate lessons or activities in the classroom.