You naturally memorize that which you are exposed to, but to say that that means we should discourage memorization in favor of purely exposure (which is the cur

You naturally memorize that which you are exposed to, but to say that that means we should discourage memorization in favor of purely exposure (which is the current status quo AFAICT), is completely misguided. Yes, you will almost certainly memorize anything with enough exposure, but targeted memorization is also useful, if the former's not going fast enough.