Yup. I always try to explain this to people, because I've noticed many people who really try to give their cats the best just don't really know about these things. And they inadvertently hurt their cats.

Giving your cats healthier food doesn't necessarily have to be super expensive either. Even supermarket wet food is better than dry. Sure, they sometimes have vegetables or grains added as well, but at the very least you fix the water intake issue and this is the number one priority imo.