Yes, but it's really very easy to improve these bad passwords. Even one can improve the worst passwords. Let's take 2 of the worst passwords.
1) "ivory". According to security.org, it would take a computer about 2 hundred microseconds to crack this password. Now, let's improve it: add a number (for example "9"), add a capital letter (for example "M"), add a symbol (for example "~"), add a small letter (for example "w"). Now we have "ivory9M~w", but still, it's not a very good password, because
It would take a computer about
1 month
to crack your password
. So, the easiest way to make it one of the best is just to repeat the word "ivory" once again and to have this password: "ivory9M~wivory". Now it's one of the best passwords ever, because
It would take a computer about
4 hundred million years
to crack your password
About 400 000 000 years! Not bad, huh?

2) "serg". It would take a computer about 11 microseconds to crack your password. It's really a terribly bad password. And even this one I can improve very well. It will become not just a better one, it will be one of the best one. So, first repeat "serg" once again. Now you have "sergserg". Second, just add a small letter, a capital letter, a number and a symbol (for example these ones "s", "B", "1" and "+") and we'll have "sergsergsB1+". Now it takes a computer about 34 thousand years to crack the password. 34 000 years! One of the best!
In case you can't use special symbols, don't worry. Just instead of the symbol add something else. For example a small letter "j". It will be enough. See:
- ivory9Mjwivory takes about 9 000 000 years to be cracked.
- sergsergsB1j takes about 2000 years to be cracked.
.