Suing him because he broke caiifornian state law in the way he fired them. They're out of a job. Why wouldn't they sue him if they can? That's not being a snowflake, it's standing up for yourself rather than letting the richest man on the planet f*ck you over.
Because before the firing was issued they wrote a threatening letter to Musk on not firing them and making demands, do you honestly think this is going to shine a good light on you from your new boss.
Musk/Twitter doesn't owe them a thing like any other company, those who have skills that are in demand will do good, but tech companies are laying off staff like crazy it's only going to get worse next year.
IMO Musk is an ideas merchant who got lucky with the idea of cars powered by laptop batteries (which was not his idea, as Tesla was already going when he joined) and with SpaceX; Obama took an axe to NASA's budget, NASA fired a load of geniuses, Musk flew down to Florida and hired them for SpaceX. And those SpaceX big brains also informed the design of Tesla cars.
Since then we've seen a parade of mad ideas from him, and this Twitter purchase is his biggest fuck up yet.
There's no luck in it, Musk like any other successful person is there because they had the idea and bulls to go out an execute it, also not caring what other people think of them. It's why a lot of people don't succeed in life as they care too much about what other people think of them. I don't like Musk as a person but I can admire the way he has gone about his business