Huh ... ??? the best musicians in all genres ( Rock, Blues & C&W etc ) all have a solid grounding in jazz fundamentals. You don't have to like jazz as such to understand that jazz requires a complete knowledge and understanding of music structure that applies to any style of music. And in relation to this thread it certainly applies to chord substitution.

But having said that ... how can anyone not like hot jazz playing that is the pinnacle of muscianship