Fights with struggle are more satifying than those without it imo.
My problem with Franky vs Sasaki isn't "Franky should be weaker so it makes more sense", it's "Sasaki should be stronger so Franky can look even better and show more growth from defeating him".
Hell, Franky's most badass moment post timeskip happened specifically because he took so much damage from Sr. Pink's suplex and still stood back up to finish the fight.
My problem with Franky vs Sasaki isn't "Franky should be weaker so it makes more sense", it's "Sasaki should be stronger so Franky can look even better and show more growth from defeating him".
Hell, Franky's most badass moment post timeskip happened specifically because he took so much damage from Sr. Pink's suplex and still stood back up to finish the fight.