Convoy knows their situation very well, and it hasn't changed for 6 months.
As investors and founders you can make the call and be responsible to your employees, maintaining a good reputation for yourself (as founders), and enabling future deal flow (as investors) or this situation where they get 0 help transitioning.
This wasn't an early stage company. They're a late stage (series D iirc?) company that was valued at 1 billion+ with 5000 employees. It's not fair to characterize this with the same risk profile as an early stage co., and the expectations here should be higher in terms of severance and help.