[tomatoman]

Why should we care if it was used, the guy was trying to help. If they moved faster and didn't end up using it then so what?

[utopcell]

It speaks to whether it was useful in any capacity. There's also a point to be made about advertising having a solution to a problem without actually having solved any instance of it in practice.

[WalterGR]

The person you’re responding to didn’t tell you to care. They asked a question. The brand of knee-jerk hostility in your comment isn’t welcome on this site.

[utopcell]

It does seem that they put in a lot of effort to construct their device so I'm less inclined to call the engineering part of it a PR stunt.