I'd argue that, while reductive, "it's bad" is probably a pretty safe takeaway from this, given that the article says if you are of a healthy weight and activity level that you can get away with eating a less balanced diet. Most people in the areas interacting with this post aren't probably doing that exercise and weight thing, so the carefully balanced diet it is for us. Based on North American red meat consumption this is likely much less than the reader currently eats, so they should probably cut back.
Internet translation of that resoning: "it's bad don't eat it".
Milk is another great example of industry influencing diet, it is not a necessary component of people's diet once they are done being a tiny baby.
Can't or don't want to? Cutting meat out is quite easy and more obviously a choice when you instead eat eggs, nuts, varied veggies, and legumes. Heck of a lot cheaper too