Cats doesn't need more beef kibbles than vegan kebbles! It's a common fallacy but cats do thrive with vegetables if selected and cooked right! Sure they're meat eater in the wild but if we accept modern (ultra processed) meat keebles as suitable for a cat, the vegan options definitely also check the healthy and nutricious points.
Now we can debate if it's "natural" but that would open the horizon to other aspects of cat's modern live.