I don't think most meat eaters these days have seen a pig that you had around slaughtered and butchered? A chicken? Eaten most of either, including brain, liver, marrow? It's been 35 years and I still remember.
It's an entirely different experience than buying that juicy, red, CO packed cut at the supermarket.
It's ok to not care but I wouldn't call this piece slander pushing an agenda, it's what it means to eat meat but most have forgotten because it's so removed.
Forgotten? Most people never knew and have no clue as to where their meat comes from, the specializations existing at each stage of life - and the farms dedicated to each stage, and how the meat is slaughtered. Honestly, I think it's for the best they don't know, otherwise they would be appalled.