Your opinion relies on a couple things that are pretty unlikely. One, that someone as successful as Musk wouldn’t engage counsel that he completely trusts with 20% of his net worth. Two, that he went down this road without a real commitment to buy it, despite spending a ton of money in the effort to buy it.
The market turned, the valuation changed, and Musk tried a tactic to renegotiate his position. In the end, he is going to ultimately get what he really wanted, but the value of what he wanted will take a little more time to recover.