You are in error to lump all "Protestant" churches into one bucket.
If you look at the positions of the Evangelical churches vs mainline "Protestant" churches, Evangelicals are far more likely to hold Biblically based positions.
If you look at polling data about various aspects of church life Evangelicals most closely adhere to Biblical standards/practices more than mainline "Protestant" churches and Roman Catholicism.
What I meant is that this pope wants to water down exclusively Catholic teachings like the Communion as the actual body of Christ, confession with A priest as a representative of Jesus, and veneration of Saints, etc. and make the Catholic Church more Protestant like.