I agree with Chelsea that it's a little strange that this is the line. The premiere of the game (one of the episodes the channel has suddenly decided to skip) is
on YouTube, and notably, the hip action isn't a part of it yet (though not for a lack of trying on Barker's part). I also saw an early playing in which Janice was chosen to bump, and the hip bump she performed was not particularly racy (even though Barker was again playing up the suggestiveness of the game).
But there are multiple episodes that have already aired on the channel in which Barker would make uncomfortable comments about a contestant's legs. They once did a showcase about the models, who were dressed in maid outfits, cleaning Bob Barker's house. And of course there's the aforementioned $100 pocket. It seems like at this point, Barker's reputation is pretty well cemented, regardless of what this channel does or doesn't air.
But I suppose that when "Barker Era" is right there in the channel's name and one of the promos repeatedly, rhythmically emphasizes "Bob Barker," it isn't the best look to show the star of the channel behaving in a negative way. And it's easier to make the blanket statement "don't air any episodes with Bump" -- it'd be an extra expense to screen every episode and make that judgment call, especially considering that running or not running the episodes will have no effect on the viewership.
And it's not like this is the first time that Fremantle's nostalgia channels have been inconsistent in what they do and don't censor.