There you go. I don't know the gentleman in the video, but there are too many riders out there that only check those things once a year or less.
I have experienced a very slight wobble at times but it only happens at high speeds 70mph+ on sweepers. If I'm riding easy or dragging the boards there seems to be enough tension in the chassis that it doesn't happen.
If the rider experienced a wobble bad enough to cause a crash at 25mph as stated in the video, road debris, equipment malfunction or rider error would be the only answer. It seems that the media will latch onto any excuse to beat up a major manufacturer. Just look at Audi or Toyota unintended acceleration, neither of which could be proven. They will go to any length to get a headline.