The idea is that focus and actually working all of your hand instead of just fingers helps learning the material more efficiently even if your own perception of it does not agree.

Maybe it works for some people, but it certainly doesn't for me. When I'm handwriting, especially in bulk, all I can think about it how much I hate it and how I can get it to end faster. I take fewer notes with more abbreviations that are later harder to decipher.

It's different if it's something like mathematical expressions, because those are never easier to type, but just regular sentences? Absolutely not.