Because people don't hate business talk the way they hate opposing political viewpoints.
In fact, they don't care about the format one way or the other, meaning it lacks the key ingredient to successful talk programming, which is the ability to generate strong responses, whether positive or negative.
in other words, its a safe format. it doesn't matter if it bombs, because the "true believers" (either side, i'm not being politically discriminatory here) don't listen to it and couldn't give a damn, there's no complaints made to the program director. business talk serves its customers well- businesses and business people. personally, i feel that this is the wrong way to run a station if the format is wasted on the better signals in a station cluster.
what's worse is that lately the formats that are flipped TO business are the progtalk stations. and i believe that those stations are flipped are becau$e of rather obviou$ rea$on$.