F-Secure Not Giving Credit?

Yesterday, Mark over at SysInternals posted about Sony Digital Rights Management (DRM) using rootkit like practices to hide their files. This got picked up by the SANS Internet Storm Center blog giving it wider exposure.
Now today, F-Secure has a similar article. Do I think that the F-Secure Blacklight (rootkit detector) would have found the same things the SysInternals rootkit scanner did? Sure. But Sysinternals did post about it first, so I think F-Secure should give credit where credit is due. At the present time they do not mention the SysInternals writeup at all. Since that article clearly sparked their own, I find this to be poor blogging on the part of F-Secure. Give credit where it is due.