One thing I've noticed is if a Kickstarter project has a low goal that's somehow meant to fund an entire game to completion be a bit cautious. I've backed an arcade racer called Distance that already is on Early Access and is shaping up well. It had a more reasonable goal and was coming from a well-received previous game. Shovel Knight, Wasteland 2, Divinity: OS, and others have come out from KS so it's hardly a joke. I agree though that it can often seems the case projects promise more than they can deliver.
This had a reduced scope, like several tracks and several cars. It wasn't supposed to be some big game. A one man project.