No, I didn't get it wrong. I know what the original quote is but I mean what I say: Great is the enemy of Good.
We want to be great. We want our drafts to be great. But Hemingway said it best:
Are you letting your desire to edit/revise as you go derail your NaNoWriMo goals? I've done it before *coughs* *remembers last years NaNo*
Don't let your drive for great derail your ability to complete the first draft.