It's unfortunate but as is the case with regular programming in all forms of media, the sponsors call the shots with very few exceptions.
The host of these shows cater to the sponsors knowing that without them there would be no show.
I did a call in radio talk show the "Constitution Hour" for two years and vowed to not allow the sponsors to dictate where the show went.
We found a few cooperating advertisers but most did not agree with the frankness of the shows discussions and would not support it.
Only thru the donations of private individuals did the show make it two years.
I have talked to Tom Gresham in the past and he caters to his sponsors.
He knows which side of the bread gets buttered.
Money, not principles run the media. It dosen't matter wheather its gun shows or widget shows.
The same goes for most gun show promoters. They only see the income, not the product. The promoter who does our local monthly show could care a less about the complaints from the vendors who are sometimes subjected to cramped over sold spacing or at times non-airconditioned space that is not told to vendors until they show up the first day to set up.
Money is good, but not when it dictates and controls principles.
A sad fact of the world today.