This is definitely disingenuous. Everybody was gassing those garbage ass disses 6-16 in LA and Meet the Grahams. People took everything said on those tracks as gospel. Kendrick really made up an imaginary daughter and everybody ran with it.
Do you think Ether woulda hit the same if Nas said Gloria Carter she raised a horrible person with a gambling addiction and a fake daughter instead of calling Jay-Z a dikk riding fakkit who loves the attention?
People are sick of Drake. This is really all it boils down to. All these songs wouldn't have charted and caught on like this if Kendrick was sending shots at J. Cole instead. It's like a counter culture moment.