Luther did not set out to “destroy” the Church (nor could he), he saw problems and was trying to correct them. Some things he was right about. Some he clearly was not. Sadly his own pride kept him from working with the Holy Spirit and the end result was ugly, but certainly anyone with sense will study what he did and who he was if they want to understand today’s religious landscape, no?
It seems to me that the Church wanted him to recant that you are saved by grace through faith. It wasn't Luther's pride that kept him from doing so.