Yeah definitly I even categorize those attacks those blows are mainly reduced to minimum so yes he held back
I think comparing the blow where 3 admirals defended and the blows after Ace its like earth and heaven
first blow:
just this blow is many times bigger than against John Giant or the fodders he used it
and the second bigger one
island splitter level
so we have 5 stages
the blow against Akainus dai funka
the one against Kuzan
here against Kuzan you can see he hits the direction of Marineford HQ but his attacks range is limited it didnt even reach past Kuzan range nor the soldiers behind him
So I completly agree with you WB really held back
even his attack ranges vary because he specifies those attack on the opponent we can also see he was really master of his fruit those who voted WB was at 100% should reread the arc