The only instruction we have from Jesus (God) concerning what we call the Eucharist, is that we should eat and drink the bread and wine in remembrance of him. Everything else that has become attached to it comes out of the tradition of the churches. This does not make them invalid but they are situational and of human origin. As such they are not sacramental in a pure sense. Personally, I accept the rules that apply in each separate context. My preference is for Anglo-Catholic ritual conducted in a Gothic Revival church with all the trimmings. However, needs must and ritual must be compassionate and adaptable to the situation. This was Christ's attitude towards the Law.