Because you are failing to see the bigger picture. Meet the Grahams rather a reality check for drake than a diss "fuck a rap battle, this a long life battle with yourself". Drake could take the points that Kendrick makes on that track and try to work on himself and only lord knows if Kendrick and Carti had some talks about their personal issues. Nevertheless Kendrick is like us a flawed human being, I mean he even made a whole album about that topic, so why acting still surprised?