First of all: It’s not a “ceremony”; it’s a Holy Sacrifice. Secondly, all the changes are major because they degrade the Sacrifice.
nonsense...it is a ceremony just by name only...the Holy Sacrifice of the Mass has had ceremonial aspects from the beginning...things are done in order, every week is pretty much the same and NOTHING that is done, in any way, degrades the sacrifice. Good grief, the Mass has been offered in practically any venue and situation that you can imagine and NOTHING changed....in prison, war time, catacombs, terrorist camps...the Mass is ALWAYS the same