I'll go you one better.  Since you generalize that "all the saints across the millennia who worshipped in this manner..." I wonder why you leave out the Apostles and disciples and the entire early Church from any consideration, and that includes Jesus Himself?  There was and is nothing sacrosanct about your beloved seating arrangement, so it is quite rigid of you to keep foisting it on the rest of us.  Relax, will you?  Christ is still present in the Eucharist no matter how we sit, stand, kneel or recline.  You are - like so many radical trads - so wrapped up in the externals, you equate them with the actual sacrifice on the altar.  Poor theology!