For rote memorization, sure.

I'm more talking about conceptual things, say, in math. You don't need to memorize it, but you do need to remember how it works. For that, I find the textbook to be the most helpful, and class time is to help understand the textbook. For that type of thing, I don't need to reference my notes in the future, I mostly need to pay attention in class and revisit the material again later to make sure I got it. Handwriting can help with that type of retention.