As another post here mentions, it would be good for me to write about the lessons of our journey as it is unique and becoming more relevant as hardware startups seem to be on the rise. I will do that soon.
I'm not so forgiving of campaigns running into issues and not replying to comments. In this case, I see that this campaign had a last update in 2017 and people complaining in the comments with no response I can see in the last 4 years. And this kind of lack of communication that's shown in Kickstarter is not a good sign of the integrity of the company (and doesn't look good for prospective buyers).
Logistic problem are understandable, rising costs make sense but in that case, publicize it. I've seen some kickstarter campaigns that had such issues, had a lot of delays and had to sell retail in order to have enough money to deliver their backers reward but they were transparent, published the updates in kickstarter and even made it visible to everyone.