I really think this comment section is just people reading the article as "Standing desks are bad" and posting any positive thing about standing desks.
The article is, "Standing desks, by themselves, (no treadmill), provide no cardiovascular benefit. In terms of cardiovascular health, sitting maybe a marker not a cause."
That is, people who sit 12 hours a day on average, typically don't exercise and have poor cardio health. Simply standing instead of sitting won't help that, you have to exercise.