Well well well. Thankfully everyone is ok but unfortunately no one will blink an eye over this. All this talk about the design teams being next on the chopping block might have some merit.
GM's Design Studio in California Is Site of a Massive Fire https://www.caranddriver.com/news/a69137455/general-motors-design-studio-pasadena-fire/
These studios are not setup to safety handle pre production or prototype batteries. They will forgo safety equipment in the areas due to visual esthetics. They will actively resist skilled handlers because they are usually hourly workers. One poster said it the other day that people in the design studios are arrogant entitled people. In this instance no one got seriously hurt but next time they might not be so lucky.