The problem with what you’re saying is you fail to realize Zoro’s individual AP pre-aCoC was still much greater than individual aCoC attacks shown.
Even in Zori vs King we see just how powerful Zori’s and King’s AP are.
aCoC is simply an AP/Defense booster.
Why would it matter to Zori when he already has the best individual AP feat in Wano, and the best and most unparalleled Defensive feat in the series.
Other characters having aCoC doesn’t take away those facts. Especially when some aCoC characters still can’t reproduce his feats.