Also they seem to want to run this as a business, which seems absurd to me since I don't see how they can possibly charge money, and anyway the idea is so simple that it can be reimplemented in less than a week (less than a day for a basic version) and those alternative implementations may turn out to be better.

It also seems to be closed-source, which means that unless they open the source very soon it will very likely be immediately replaced in popularity by an open source version if it turns out to gain traction.