Having worked on two this is accurate. It might take them a week or so but everyone should get there money back.
I would say if they did the two "teams" so split the indie into team A butchers, team A fisherman or a few " exclusives " maybe... themed brisket, or mermaid siren you might get people backing for those. People like exclusives... look at kingdom Deaths pin ups they always sell out.
Even allow people to back for just those and you could probably hit your target.
Then do the B teams in a few months it might have got better traction.
Just an idea