ICE firewalls are designed to deflect the enginedown and under in a head on collision. Vans with engine sitting between the driver and passenger in a doghouse, or worse engine in back makes their knees first on the scene of impact with little protection. The more bodywork and chassis/monocoque between you and the crumple zone the better.
Yes that was said at the time about why flat front vehicles were safe in the sixties. rule of thumb is the heavier/bigger the vehicle the more front end protection you have. These look pretty flimsy like the Grummans.
Hopefully they have designed bracing into the frame to protect occupants.It's the high speed impacts by other vehicles that are the worry. Multi stop delivery is a major risk on busy roads. At least the design has the driver's feet just behind the front axle, would be interested to see the impact crumple one design.
My conclusion from watching is that it seems like safety is a design problem that not every mfg designed for.