Not everything IS memorization, but lots of things HAVE memorization. You don't write by regurgitating exact phrases, but your ability to write will be signific

Not everything IS memorization, but lots of things HAVE memorization. You don't write by regurgitating exact phrases, but your ability to write will be significantly impeded if you need to constantly look up word definitions, spellings, word order, syntax rules, and orthographies. There are certain fundamentals that need to be automatic, and it's fair to require internalization as part of acquiring mastery.