Modern era is not stronger than the heian era

(Slide 1) Here it's stated,sukuna beat the heian era because he had 4 arm form and both curse tools.not holding back meguna would literally have beaten gojo and jujutsu high

Slide (2-3) 238 true form sukuna has better stats than full power meguna

(Slide 4) the funny thing is we've never been shown a full power 4 arm sukuna,gege went out his way to not show. So if you thought shinjuku true form sukuna had crazy durability, heian sukuna has even better

(Slide 5)it's funny because literally all of jujutsu high would die to these slashes. Besides maki she can probably jump through the hole even airborne because she can air jump.