I'm not sure I understand the point you're trying to make. Are you telling me I should not have written this series? That it's somehow not valuable because you don't like JS? That I can't effectively teach basic machine learning concepts to interested people without forcing linear algebra onto them? That, as a teacher, I can't try to use any and all tools and techniques available to the group I'm trying to teach?

I've even explicitly mentioned that I'm staying away from algorithms that rely on linear algebra, because I'm trying to bring these concepts to people who may not have a CS or mathematical background.