Barely sober Base Kaido oneshot Boundman.
Also for the rooftop feats, they mostly focused on Zoro's strengths(attack power/lethality) when he was supported by multiple partners(5 vs 2, with the focus more being on Kaido) which was boosted by Enma which draws out more haki than usual, but attack power isn't everything and a 1 on 1 is different from a team battle where you don't have a comrade that could support or help you
This is why the comparisons you brought up are different to the 1 on 1 Zoro is getting with King
I'd say that King was in the background for too long, but he ended up catching up to Katakuri's feats
- His top tier defense is a way to mirror Katakuri's top tier evasion(with FS)
- If he really has coc, it mirrors Katakuri also having it
And attributes like flight, raw strength and lethality counters Katakuri's awakening, and mogura lethality
So so far, i'd say they are mostly comparable. King will have a hard time hitting Katakuri while Katakuri will have a hard time damaging King
If King has adcoc however, he'd definitely be above Kata