Fantastic! Great catch noticing he should not have memories of Morty waking! My theory was that eye patch morty was the morty in the universe where Rick eats his own poop! But now after reading your theory the only way my theory makes sense is the Rick we are following lost his Beth and Morty and looked for a timeline to comeback in pretending to be a deadbeat when really the original died and that's why the rick missed most of Beth's life.