Bumble Bee forced to pay $6M for worker cooked alive (2015)

This is a four year old story. The recent Bumble Bee news is that they filed for bankruptcy this week:

https://www.cnbc.com/2019/11/22/bumble-bee-files-for-bankrup...

I'm sure the $6M loss didn't help, but the bigger hit was this:

"In 2017, the company pleaded guilty for price-fixing and was fined $25 million for forming a cartel with Chicken of the Sea and Starkist. It still owes $17 million to the U.S. Department of Justice.."

I read the linked new article, and I'm not sure why Bumblebee was fined versus the employees.

Is the specific issue that Bumble Bee did not provide the workers with a safety process that may or may not have prevented this accident?

https://www.newser.com/story/206034/tuna-plant-charged-after...

Says that the workers willfully violated safety procedures, so not sure what could have been done about that.

Are there cookers of the type that Bumble Bee uses that has the ability to turn off or open from the inside that they should be using but didn't?

Terrible story. I can't begin to imagine how the family must feel knowing he died this way.