The commandment was FOR ALL THEIR GENERATIONS and as far as I can tell Jesus was in those generations through Mary. If Jesus had violated that commandment on Passover night, BEFORE the blood was shed to seal the covenant, well then Jesus would not have been the lamb without spot or blemish. Look at the passage in Luke 22. Compare it to the passages you keep pushing to support this heretical drinking of blood. Is God double-minded? No? well then, how do you reconcile / comprehend the different passages to be of the same meaning? By knowing the wording is a classic use of metaphor. You need not ignore the generations of Jesus, the commandment repeated in the old Testament, and the Times of The Lord to find a common ground for the seemingly disparate passages.
God is sovereign over the Law. Do not try to constrain him.