I wonder why they think Kid and Law defeated Big Mom? Oh right maybe because Kid and Law's crew were screaming they defeated Big Mom.
If Kid and Law truly defeated her, Oda would have shown her unconscious but he didn't. When she was falling down, she was still perfectly conscious.
As for now we don't know the current state of Big Mom after the explosion, so you can't really go around saying they defeated her when we don't know what if she is truly defeated or not.
From the characters perspective they think she got defeated because she fell from Onigashima and both Kid and Law's crew were going around screaming that Kid and Law defeated her, but we as the readers know that Big Mom was still conscious when she was falling and we still don't know the current state of Big Mom after the explosion.
You have to be a complete Yonko hater(Which you are) to ignore these.
If we actually see Big Mom unconscious later on then alright they defeated her.(Or at least the bombs did.
)
But for now we still don't know if she is truly defeated or not.
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