That I agree with, I am just trying to say BM listening to Tama makes perfect sense.
Not really, it's a big boost and a terrifying power to fight against but nothing suggests you can't fight COC with other abilities.
No, it's an increase in power, let's see, luffy has ACOA and FS, two types of haki at most, and that's not enough for kaido, luffy can now ignore KAIDO's strength thanks to ADCOC, before they needed to receive the blows , defending himself with his arms, and when he did he was screaming in pain. A person who does not have COC will have the same fate, the blows will touch you, even when you are against attacking, as luffy did here, for example a MAGMA punch from akainu,you will not be able to play at the Kaido club, for that KAIDO counterattacks the punch using your club and the ADCOC from a distance (in front of the club), so first the punch needs to pass through the ADCOC and only then reach the club.
A user without ADCOC cannot beat KAIDO, 1x1, I am not generalizing that all users who have ADCOC automatically beat those who do not, but a user who does not have ADCOC is completely below in terms of%, of equaling KAIDO in a confrontation , ADCOC is necessary for this, it may not be necessary for other users of ADCOC, because they do not have the durability of KAIDO, and this makes KAIDO special among ADCOC.
We are seeing ACOA, failing to do real damage to KAIDO, Luffy says it is superficial.
But ACOA will not be superficial in other users of ADCOC who do not have the durability of KAIDO, so someone who has NOT Adcoc, and has ACOA may, yes, have a chance against SHANKS for example, but not against KAIDO.