Coffee,
Thanks for the civil discussion.
In regards to your question as to why Hashem would do this miracle of יעקב לא מת:
This question has bothered all of the meforshim, and this is whether or not they took it to refer to physically or not – what is this unique limmud about Yaakov not dying, as opposed to other tzaddikim? (Regarding other tzaddikim it says במיתתן קרוים חיים. Why does Yaakov have a possuk that teaches even more – that he didn’t die?)
You can learn the meforshim on Chumash and Gemara for all of their explanations.
Many explain this in connection with the idea of מטתו שלמה, since there was no פסול in his זרע that caused a stronger level of eternity for him.
There is also the idea that he was בחיר שבאבות who was so saturated with Torah, that the eternity of Torah rubbed of on him.
Some explain that this was really the entire discussion at the seuda, Rav Nachman and Rav Yitzchak were debating the Torah perspective on how we look at nature vs Torah.
That’s connected to the first part of the discussion about the physical dangers of speaking divrei Torah at a seuda, etc.
אין כאן המקום להאריך.