I hate business media.
FWIW, that number is really badly spun. The grants date back to 2017, when Tesla's market value was 30x lower. So at the time, the grants were more like $20-30M, hardly the kind of hyperbole-inducing sort of thing. They only look huge now because Tesla has been so successful.
And thus, more to the point: arguing that you, as a TSLA shareholder, were harmed by the behavior of corporate governance during a period where you made back a three thousand percent return on your investment is... kinda batshit, honestly.
Now that said, I don't know anything about the history of shareholder lawsuits or how likely this was to have been successful. It seems like the board capitulated, at least in part. So... no harm no foul, I guess.