Where are those people saying Elon is a sophisticated investor ?
All I see in the thread is that it is most likely either a negotiation tactic to lower the price, or a way to get out of the deal without paying 1B.
Don't fall into the reverse cult, from your comment it seems that you have an axe to grind against Elon, and it seems to follow the general narrative towards him that went from savior of humanity a few years ago to total villain now.