I could definitely believe most of these nikkas when they say they don't listen primarily to Hip-Hop. I've heard of a lot of top tier professionals not indulging in their "thing" as a passtime. Michael Jordan said he thought Basketball was boring to watch on TV...Tupac didn't listen primarily to Hip-Hop...Wayne talked about not knowing anything but singles from most nikkas...Jay said he doesn't listen to a lot of Hip-Hop...it's a hard thing for the average person to understand but it's definitely the truth.
For one Hip-Hop is a narcissistic job by nature so a lot of artists feel like "fukk these other nikkas anyway, I'm the shyt, no one can do it like me"...some don't want to psyche themselves out or become too derivative so they don't listen to other people....and some, once they invest so much of their own lives into making music just don't want to hear it at home. It's like how some girls say they're not even hungry right after they cook a big meal...Every MC isn't obligated to be some super Hip-Hop head...most of the artistically gifted just have tunnel vision. How often do you hear artists get genuinely stumped in interviews when they're asked who they listen to, and just name common names or their friends? You think that's to be trendy?
I could see where Future is running around doing this or that fulfilling his obligations as an artist and hasn't heard the track...I'm sure he came across the lines or the just of what Kendrick said from people close to him, but he probably didn't hear the whole thing. Why does anyone feel like he has to lie about that, it's not like he's that type of artist feels threatened or like he needs to compete with Kendrick lyrically or something.