CB had a few radio songs so it got some mainstream recognition because of white girls. I'd definitely say the majority of chance fans were disappointed and it received bad response in the hip hop community, as you can see in this thread.
I don't really see how TPAB is overrated. It's divisive because it was such a left turn and so some people specifically don't feel it but overall it was a cultural smash hit amongst hip hop heads and non-hip hop heads alike. For every person who didn't feel Kendrick's direction, there were 5 rap fans and 15 non rap fans who dug it. Gotta count for something
