The truth is somewhere in the middle.
Being able to make dense, complex lyricism palatable for the masses IS a skill, something that Biggie and Jay are probably the GOATs at. Nas' limitations with this has always been pretty exaggerated...but he is Hit Or Miss at it; for every If I Ruled The World he has a Dr. Knockboot, a lot of "Whut da hell is a Polar Bear doin in Arlington, Texas???" moments...dont make me run back the "Nas has weird sex bars" thread
Like somebody brought up You Owe Me but like...that nikka had reparation bars on a hook about Getting Head for ice, that's some "p*ssy tighter than the conditions of us black folks" level of

and not in a "See hes kicking deep shyt on a commercial record" way but just a total nonsequitir, "Not reading the room" shyt; a conscious rapper caught in unfamiliar territory. A polar bear in Arlington Texas lol
Of course, Nas' strengths are so strong that it makes it a moot point, but it is a leg up that Kendrick has on him.