Although I think there is a different mechanism at work in both cases.
Pigs are thought to be dirty (which is wrong, although they are often kept in filthy conditions THEY are not responsible for) so I think people wouldn't like the idea of eating "pig strips" although "bacon" is just fine & dandy

With cows, I think people actually do have romanticized notions about cattle drives & placid dairy cows chewing cud peacefully in green pastures while their calves frolic. They don't want those pictures associated with the steak on their plate, it might make them feel a twinge of guilt.
Although the REALITY of what is REALLY behind the steak on their plate should make them feel far more guilty than that.
Yeah, I said they should feel guilty.
Please understand. I'm not yelling at you or anyone here. You know all this stuff way better than I do. And you are way ahead of me on this issue in hundreds of ways. I'm just really fired up and angry after having watched that show last night.