I think people who are making a stink are just looking for a reason to back out.
By posting this video and having them say they are out right away, when clearly you have indicated this is a work in progress, further supports this, so I wouldn't worry about learning any lessons from this. I, and I am sure many others, appreciate all the little scraps of info that you give us.
I am not in the race, but I hope it is a run away success and you sell thousands of them so that I can get a beat up routed one cheaper after everyone has their new shiney ones.
They already said they are going to give a "warning" before the final approval to allow time for people to back out if they want.