The "backers" gave money to get the product made, period.
It's not a pre-order system. Stop thinking it is.
Getting stuff from the KS is a bonus, not the point.
Backers pledge to get something out of it, not just get the product made.
May it be exclusive items or more stuff for their buck, but a KS campaign without incentive is doomed to fail.
In the case of this campaign, it was just a big pre-order service. It was advertised as a way to release more models faster than by going the usual way and it turned out to be a huge mess.
Both are well established companies that didn't need to go to crowdfunding to release their new models, but they chose to simply to get the money faster.
Instead of focusing on producing the models, they took care of an old debt that had nothing to do with the backers.
Both are now in dispute as to who will pay for the not so free items promised to the backers.
Don't want to give more stuff in your campaign, fine, but don't advertise that you will and change your mind halfway through.