it's a poor design, that's why they've started to make safety catches. I'm guessing a lot of BR users constantly check connections to avoid disaster. I do see those guys constantly fiddle with the strap, whether it's to check connection or to prevent it from swinging all over the place.
This is just comical. This sounds like a regurgitation of something read or seen elsewhere and not an owner response.
It's hardly a poor design. I use the BR Sport. It holds the camera securely and it's really comfortable when you have a heavy kit. And it doesn't 'swing all over the place' any more than any other strap.
Buy one, it's a great strap.