I’ve always thought that saying was weird. If I’m specifically grilling, I want to taste the heat. The smoky aroma is what makes grilling special to me. If you just want to taste the meat, it isn’t that different to using a pan imo. That’s why I like coal grills but prefer a wood fire, though that can be unpractical for some stuff
Using a pan and a propane grill are vastly different imo. I dont dislike charcoal or wood. I think each has thier own place depending on the meal you are preparing. For example I like to make steak and chicken kabobs on a propane grill and burgers and hotdogs on a charcoal.
At the end of the day though seasoning and meat quality take center stage. So its all about what you have access to and can afford.