This does not make Elon look any better. Elon himself chose to eschew due diligence when he signed the first intent to buy. The first intent to buy was incredibly unusual in the first place because he did not ask for any due-diligence.
If I tell you I will buy your car, no questions asked, and then show up and start complaining about the headlights, that is flip-flopping. It's why the whole thing went to court. Do you really think normal M&A doesn't include due-diligence?
Regardless, the "hidden" issues were a scapegoat. It is far more likely that he wanted to backout because the entire tech sector crashed and 44B was now an insane premium (SNAP, which was worth ~30B at the time is now 15B).