I think it’s entirely reasonable to have standards about how Kickstarter creators should go into projects and what sort of management those projects should see, etc. What I don’t think is reasonable is to look at Kickstarter and actually expect projects to, in practice, regularly hit estimated dates. Because that is just not the track record that has been established.
I’ve backed a couple hundred projects at this point and I think somewhere between 3 and 10 of them ever hit their estimates or were early. I’ve had more projects that have either officially given up or have been radio silent for years and thus are almost certainly dead, and that number isn’t even close to being a high enough percentage to dissuade me from the platform. (Though, nearly all of them were videogame projects and I’ve stopped backing those for the most part.)
So yeah. They should make reasonable estimates and plan in ways that ensure they fulfill them. But expecting that to actually happen is very likely to bring disappointment.