Yes, it is confusing to put meat in a category of foods missing from first-world diets. Should we add caviar and pound cake to that list too?
More significant: will it be a diet improvement to replace fatty hamburger with this 'meat'? Perhaps - since Americans eat pounds of meat per day, a whole week's worth of protein in a Wendy's Double with Cheese.
I imagine there are far more useful things to worry about in the American diet, than subtle differences between a single strain of pork muscle vs which strain of angus they're eating. Like how much they're eating; how much fat, salt, empty carbohydrates.
If you are worried for yourself, fine, FUD away and eat vegan. But as a social phenomenon, I can't see how lab-meat can be very harmful, and it is a certain good.
More significant: will it be a diet improvement to replace fatty hamburger with this 'meat'? Perhaps - since Americans eat pounds of meat per day, a whole week's worth of protein in a Wendy's Double with Cheese.