I would do it.
Some fans dont want to admit it but
Being undefeated is the best case for a GOAT
If you do lose, losing a decision or by Doctor stoppage is preferable to being submitted or KO/Tko
And if you are finished or do lose a decision Avenging your losses is necessary to always silence critics and the man who beat you.
Like Imagine Luke Rockholds predicament (lol) he is a superior fighter to Bisping everywhere except Chin, and would win that fight 7/10x or 8/10x. BUT Bisping did KTFO him, took his belt then defended it then retired. Luke never got his rubber match and will never hold a belt again and never defended. That must bother him
It is why fighters do it they know it matters. Remember Chuck fighting Jeremy Horn? Bisping with Hendo? Etc it goes on. I bet Ngannou will want to avenge his Black beast loss abd wishes he could avenge the Can who beat him in one of his first fights by decision