If you’re interested in Christ, then why wouldn’t you be interested in all details surrounding that hour when He gave us His Body and Blood?
Fair question, but you would then need to be interested in other items such as the common bowl or the furnishings or the very room. First question that should have been asked is this, was it common practice to use a cloth? If the answer is yes, then historians have a legitimate research vessel. If not, then this is an exercise in chasing a non-existent rabbit down a hole.