Sorry but no.
If Doffy is smart enough to realize CoC is a strong ability he should be smart enough to grow it.
Same as Katakuri who has a Yonko for a mother.
CoC is not talented related.
Even Kaido said only the strongest would awaken CoC as a whole, there's no reason to believe Kata or Doffy would been able to do it.
I mean... they simply couldn't do it.
You are ignoring canon statements in the manga of characters placing Luffy's potential over Law's simply because Luffy used CoC ONCE accidentally in Marineford.
Just look at the reactions of all the Big Shots in Marineford when Luffy awakened it...
This is proper buildup about an ability.
You are severely underestimating that ability & the amount of hype, buildup & foreshadowing that went into it.