I think the killer was really the very low projected price of the pre-order, even today nobody makes a drone that does what Lily was supposed to do for less than $999.
They figure out they could do it but not at that price point, they would be losing a loot of money on each unit.
That's one thing that keeps me away from most Kickstarter projects and very early pre-orders from new or unknown companies.
Even if the technology is feasible and there's a working prototype, there's still a lot of work to do to get it mass produced, and problems and unanticipated expenses can crop up all along the way, especially for people who've never gone through the process before.
