It's never a mistake to try and fail. They aren't trying too hard to make themselves different, they are in fact just that different. It's easy for people to sit at their keyboards and criticize, and it's easy to say 'it's been like this for a hundred years, therefore this is the only way'. And if that means they make some foibles along the way, so be it. I'm happy that Tesla isn't stuck in a century's worth of thinking and in this case revisited a cool, old idea and hopefully made it work. I saw the prototype up close. I'm looking forward to seeing a production model, and seeing what sorts of changes/improvements have been made. It was slick then, I'm sure it's slick now.