I think perhaps there's a confusion of "memorization" with "rote memorization". The word "rote" connotes flashcards and dull drills, but memorization by itself, to me at least, is more like "a focused attempt at internalizing information", in whatever way that means to a person, as opposed to just ingesting it or letting it wash over you/osmosis.

But that's just my interpretation of the terms. I don't know what the "official" meanings are.