Yes, there is an Asian focus, and yes, this is a general consideration of culturally responsive teaching that then translates into what that looks like for Asian content/students/staff/etc. DelaRosa comes from a good place. That said, it feels impossible to do all that he recommends while also being responsive to every other identity. That's not to say that one shouldn't. It's just that in attempting to do this, the most well-meaning and dedicated teacher will be unable, in a K-12 setting, to do the kind of focus that would be ideal while doing justice to all of the other salient segments. It felt, as it has with advocacy for other identity markers to be centralized in the curriculum, that it is more suited to the more deep and focused curricula in universities. That isn't to say that everything possible shouldn't be done to find more ways to represent a variety of voices and less white-washed histories. I was just overwhelmed by the the number of suggestions in this book that would be utterly impossible for a single teacher/class grade to implement without it being nearly the whole curriculum. Spread over all grade levels, though, yes. And I guess this is the goal.
He centralizes what the calls "the invisible race" because so much has been for Black and Latin(x) work, and Asian backgrounds, perceived as white-adjacent to many (or "compliant") end up falling through the cracks. This is valid and important. And he focuses on different identities within the Asian "umbrella" (some attention to different ethnic backgrounds, and more on LGBTQ+).
Overall, I think this is helpful for teachers and/or schools for whom this population may be somewhat invisible (in the student body or in the curriculum). I think it should, though, make all of us constantly aware of all of the blind spots that we may have.