Maybe a ToF based direction finder for a 433 MHz beacon would help, forget about image processing on the drone.
GPS is enough for locating, vision recognition is just there for additional precision and image smoothness. The big issues for something you "launch and forget" are obstacle detection and positioning reliability.
Technologically the first is becoming possible, the 2nd is getting better but still a bit of "spray and pray"... but the state of the art in both fields combined costs >3x what Lily was hoping to sell for, anyone with a foot in the industry would call BS, completely unrealistic.
My stance is that anything that needs breakthrough technology should never be crowdfunded or even announced before being ready. All they achieved is reveal the interest in this so that the big players could invest all their know-how and WAY bigger resources into competing with them.
It's not a bad thing per se, but anyone going this way should be aware of it. Maybe they were. Make a big buzz so that someone else does the complex job that's outside of your capabilities and creates what you want... IF they actually do refund all preorders I would consider them geniuses.
The lawsuit developments will also be very interesting for anyone considering a tech project. Nowadays if you don't do what they did you have 0 chance of getting attention. If that gets punished... it would be a giant blow to innovation and small-medium scale developments. If when you try to do something good all you gain is being sued for doing what everybody does, why bother. I'd rather sit on my chair and watch the others in their mess than try to do something, even if I've got great ideas.
I'm NOT condoning the stupid "not actual footage" or whatever warnings that would make it legal. The only solution is for everybody to be prohibited from including any footage that would warrant such a warning... but it would force a "downgrade" on so many big players there's no chance it would happen. Actually, maybe with Trump's councelor pushing down on them that could be a thing...