I wasn't even necessarily saying it was worse, I was just saying that Light's character is a major part of the story's tone and themes, and making him outwardly what he always was deep down changes the tone dramatically.
It's changing Light into the kind of kid who read Death Note and legitimately admired Light, which is an interesting idea, but I wonder how well that actually works in practice.
edit: also as others have pointed out, Ryuk is completely amoral in the source material but even he gets surprised by how ruthless Light can be and his only stakes in Light's success are entertainment and apples, so having him actively try to push Light into it changes a lot