Stats wise he absolutely scales to MS Sasuke
if his stats were worse why Sasuke needed to resort to using amaterasu?
and the only way Sasuke was able to fight him was to use spam Susanoo
It was a battle of attrition
Stats wise he comes nowhere close to MS Sasuke, being outsped repeatedly, killed a dozen times and only being able to resist because he can respawn.
What do you mean "resort to Amaterasu", it's his go to move when he unlocks it.
Right, just ignore the many times that Sasuke killed Danzo with shuriken, Chidori, his sword and basic Susanoo punches or slams. Totally how two comparable fighters are portrayed, not at all like someone repeatedly crushing an ant that has a dozen lives.
Without Izanagi, the fight lasts ten seconds.