Without the developments of the Middle Ages the Evangelical Protestant church as we know it would be virtually impossible.
More later, but this is a beginning point for thoughts on why Evangelicals should not skip over the Middle Ages as critical to our own history. Many of the beliefs and values we hold dear developed for the first time during this period of history. The Reformation ran with what was already happening and must soon happen in a larger and more radical way. This does not diminish Martin Luther but makes him necessary to complete the journey already begun.
Evangelicals need to adopt the Medieval period as their own history and worthy of that study which leads to a truer piety and a fuller worship.