Without knowing, and a proper investigation, we can't decide. If it was negligence, punishment is used for a variety of reasons. Often, it is the only way to get people to push back against employers.
And fines, are often the only way to get companies to care.
When what you make has the potential to impact billions; no offense, but I expect you to be a bit more hardcore about your adherence to safe practices of your trade.
If this means the only people who end up becoming virologists and doing work that conceivably leads to the creation of pandemic pathogens are the most hardcore mf'ers with a boner for safety, perfectionism , and preserving their own skin; ...I'm actually okay with that.
I'll even sweeten the pot. Lets extend that to Software Engineers and get a PE program for that sorted.
Consistency after all.
Long story short: "Oopsie" as an excuse stops applying when your body count becomes non-zero.
That sounds like a call for professional licensure and personal financial penalties for failures. Ensuring financial ruin for GoF cowgirls and cowboys and their families would be a good start.
The original Lancet article: https://www.thelancet.com/journals/lancet/article/PIIS0140-6...
The retraction: https://www.thelancet.com/journals/lancet/article/PIIS0140-6...