No, i am not suggesting to create your password like this. you can create something like !Went>P@r!$&be$tmem0ryev_r
Something that you can create that reflect to your experience and easy to remember and hard to crack
Not all people can memorize easily even a simple password, they still need to take it down or keep it in a place where they can easily get it if needed, so, what if they create 3 seed words and passphrase which is difficult to memorize. I think your opinion is just good for you because the mental capacity of everyone to memorize something is different from each other. What if you memorized your password and the seed but after a year you are diagnose that have Alzheimer...what will happen to your account?