Probably a lot of them.
Law went from being fodderized by Doffy's strings to actually tanking BM's coated punches with no reason at all.
Law is a shitty character in terms of power scaling, because he is the most plot-armored character in this series, even more than Luffy.
People overrate that feat
Law isn't tanking those hits if BM was standing on her feet
Unless you guys think Law can tank g4 + attacks
Base Linlin = g4
Bigger Mom strength = adcoc G4
BM on her back isn't generating the same force while punching as when she's standing
Nobody does in real life too!