There are several reasons why tabby cats should not be fed cooked food:
The ancestors of the tabby cat lived in the wild and needed to eat raw meat to obtain sufficient nutrition and energy. Feeding tabby cats cooked food will lead to malnutrition because the nutrients in cooked food are destroyed.
The high salt and other additives in cooked food can cause health problems for tabby cats, such as kidney disease and digestive issues.

The seasonings and aromas in cooked food can affect a tabby cat's sense of smell and taste, causing it to develop a stronger preference for strong flavors and lose sensitivity to food, which in turn affects its health.