For goodness sake, they live in Brooklyn! Even in Brooklyn Heights, Jews are plentiful. No one could yell out in public, "Hey, when do you celebrate Seder." Jesus observed Jewish traditions and rituals. The Jewish authorities were good enough for him and he was God so he ought to remember when Nisan 14 was. He should remember the Exodus and particularly the events before his crucifixion. If I were Jesus, both events would stick out in my mind.
I apppreciate the details but, for me, this isn't about painstaking details. It is about false authority and humans so self-centered they don't need research libraries, consultations, discussions before action. The blood doctrine is a perfect example. How many have perished b/c they have no cohesive picture. It seems Bethel always does things ad hoc. Of course, this is not new insight for me. Nor is this new anger.
My youth was so tainted by their strange beliefs. Beliefs I never shared though I sure people pleased. They go out of their way to be different. Only they can access the Bible? Any literate person in any culture can access the Bible. The Bible authors employed different genres, poetry, narrative, etc. to paint a very complex and often contradictory picture. The Witnesses new WT is do dumbed down. God is not a dumb human.