What you call "crust" we (and the Orthodox, and the other oriental Churches) say is the *esse*, the very life and being of the Church which is part of the divine revelation that Christ gave to the Apostles. We would not THINK of throwing away the belief of the Real Presence of the Eucharist any more than you would throw away a book of the Bible.
The Reformation made its decision to scrap these so-called "accumulations", and by doing so, it wrote itself out of being considered a true Church by the other communities who preserved them. Period. It was as true at the Council of Trent as it is now.
This document is nothing new on that score.
I did not mention presence.
I mentioned those things that have not got one whit, one iota of biblical backing....assumption, immaculate conception, and coredemption of Mary.
They are made-up-by-man additions....no different than Joseph Mormon Smith making up golden plates in New York state.