Comment by InsomniacL

> I think you're putting very little weight into the ability of government organizations like the NTSB or equivalent to determine root cause of a crash

Not at all, I expect they will know every detail/fault/liability. In the meantime though, 'backlash'

  - Manufacture's name is in the headlines

  - That model of train may be 'grounded' or receive negative publicity

(We see this often in Air accidents (737 MAX, Ospreys in Japan)

Even if the manufacturer is determined to not be at fault, bad tastes linger..

  - greater scrutiny

  - % will hear of initial reports but miss later reports exonerating Manufacture