For many years now there have been a few stories that have come out that people have had their camera fall while it was mounted to a Black Rapids strap. Stories like that and the paranoia that comes with it drive me crazy. How many car accidents are there every day, yet people don't think twice about getting in their car and driving.
With that, that is why Gianna's Papa mention that it may tone down somewhat the rumors that dSLR's aren't made to go with with the BR strap (which IMO is a stupid rumor). Nikon has teamed with Black Rapids to make another strap that says Nikon on it. Kinda like the NFL teaming with Nike to make their uniforms. Or Tiger Woods teaming with Titleist to make him golf balls. Or the NBA teaming with Spaulding to make them basketballs. Etc... Just a marketing thing. Nothing more.
I've been using a Black Rapids strap for about 5-6 years with 3 different Nikon dSLR bodies. I've never had one issue. (even with my D700 with 24-70 f/2.8 lens & SB-900 flash attached or my 70-200 f/2.8 lens attached). Tomorrow I'm going to use it while skiing.