I have, but I am not a lawyer. Perhaps you are and can speak intelligently to their validity. What I will say is that there is a better than average chance that exceptionally good and well paid lawyers drew them up and a better than average chance that many of the armchair legal analysts commenting here and elsewhere are not good and well paid lawyers.
Wealthy business people I know are not adverse to risk, but they are methodical and are generally careful when large amounts of their own capital is at risk. This smells more to me like a calculated negotiation tactic to try grab a lower buy price that didn’t pay off for Musk more than anything else. In then end, he got what he originally wanted and at the price he was originally willing to pay.