Price has been upped from $59,000 to $92,000 or so I'm told, and there's a reason it's flying at a height of around fifteen feet throughout (but a considerable feat in itself).
The only engine-out video I've seen for multicopters is DJI's for their octocopter, and it's what a helicopter pilot would call a controlled crash rather than a forced landing.
Nonetheless there are two factors at play that would suggest that it's an idea whose time has come (ref Victor Hugo):
One is the extraordinary reliability of the electrical components as proven by millions of hours of quadcopter drone operation against the failure rate.
Two is the fact that a prang in this (at that level and speed) is less likely to result in a fatality than a collision between motorcyclist and car-driver of the sort happening by hundreds and thousands on a daily basis.
And given the choice, which way would you rather die?
The personal air vehicle shown is the Jetson (singular).