Indeed. It is very important to learn coding. It is the same everywhere, you can't be expected to run a garments business without knowing something about fabrics. People wear clothes, I will make a cloth company wont make sense. Of course you could give it a shot, but its obvious you would feel sort of handicapped and find questioning yourself over your decisions.
Since it's already so difficult to make a startup grow and survive in the first place, does the founder truly have time to "learn to code" while maintaining their other duties?