As it says in the bill which you didn't bother to even take a precursory glance over, there is an inherent danger in launching rockets which doesn't exist in a lot of other industries. Rocket companies can still be sued if there is gross negligence or deliberate failings on their part, but unfortunately sometimes with every reasonable precaution taken something bad can happen. No one is being forced to work at SpaceX or any other rocket company though, and people need to sign a waiver.
Funnily enough Elon says SpaceX has so many applicants to work there that it's more difficult to get a job at SpaceX than it is a place at any leading University.
Roar no one is anywhere near that rocket when it launches or they certainly shouldn't be. As you have read the whole bill, what happens if the rocket crashes into the mission control building which is several miles away and kills/injures workers, can they or their families sue? And as they say, the devil will be in the details when it comes to negligence, lawyers are very clever at wording these things in such a way that it makes it almost impossible for someone to prove negligence or just too damned expensive.
I can think of jobs far more dangerous. Oil industry, fishing industry, mining industry, logging industry, the police. I just don't see what makes rocket companies special.
What has that last sentence got to do with the price of bread? No one has said people don't want to work there, they are questioning why rocket companies are getting this exemption.