I have no idea how you even reach this conclusion.
Yes, the prime subject of talk, when it comes to pros and pro-inspired amateurs, typically falls to lens choice, but the body gets discussed at some point too.
It USED to be the case that the talk of body choice was a fairly moot point, back when all SLRs were film. Unless you needed crazy AF for sports photography, a film body was a film body.
Today, the "film quality" in built into each SLR, and is constantly improving.
Sensor quality is constantly getting better, and it's a huge point of discussion for anyone who is truly into photography to any degree beyond a passing hobby.