I don't think so, why would kaido and Big mom be exception when awakening usage is stated clearly for others
Other than them explicitly saying its their awakening how do the abilities not match how awakening was described to us
They don't. Kaido looks just like a bulkier version of his hybrid. And being mythical zoan like Luffy with no other special abilities granted.
Same with BM. Soul Pocus is not awakening when it only works to those who fear her. Nor is her giving live to non living things awakening since she could do that since childhood.
Yes hes a bigger more beast like version of his normal hybrid
The nika fruit is an extremely rare special fruit. Comparing its awakening to others even laws doesn't work. Luffy's awakening is specifically
Big moms normal ability that even mother carmel showed is being able to use their own soul to infuse Inanimate objects or yourself with. She can also make incarnations
Awakening allows her to use the souls of others instead of just her own. It has to be limited because if it wasnt she would legit just kill everyone