The article itself does mention that creating cultured meat is already possible, just that the limits of the technology presently known for doing it make creating it at the same cost as regular meat infeasible. Which technically doesn't contradict with what the person you replied to said, because the commenter didn't exactly say how expensive or niche they expected it to be, so even something like a hundred dollar hamburger that doesn't replace a significant fraction of food consumption but does exist as a novelty luxury for someone that had the money to spend on animal protein once in a blue moon, fits.