I'm all in favor of making improvements, and I think VALID comparisons are good.
But valid comparisons show how things behave in the real world, under real world conditions. I'm certainly not the most experienced tractor operator out there, but I'm pretty sure that running a tooth bar down some pavement is not a task that most tractor operators do very often.
When I saw that video, I expected to see them using them side by side doing real tasks, like ripping our grass, or clearing brush & saplings, or even just digging.
Nope. I guess that wouldn't have suited their purpose.
I have no idea if their bar is better than the Piranha or not, but from that video, the only thing I can tell is that they are less than honest.