This isn't unpopular, it's wrong. For many, many reasons.
Who's doing the synthesizing? Who's doing the formula balancing so that the end product is actually consumable and palatable for the animal? Who's doing the trials, because those are required and hello animal testing...
Unpopular to say, but fuck it:
‘Obligate carnivore’ is an ecological term, not a nutritional term.
In nature, a cat must hunt, because their digestive system requires the *nutrients* found in meat.
Those nutrients can be synthesized.