MacRumors appears to put articles on the front page from existing rumor sites, rather than making articles on personal speculation, however logical the latter may be. MacOSRumors has basically zero credibility for the last few years and that is why MacRumors doesn't report on their rumors.it is bothersome to me that I had to drill down to this level of the forums to get any info on the Mac Pro. They have printed rumors on everything from tiny iphones to tablet macs from very dubious sources and yet not a peep on the mac pro. Even the macosrumors article which you so gleefully demolished would have been worth a read and a chuckle on page 2. I missed that little gem and the Beckton announcement because mac rumors is my apple "news" source of choice. I'm a tad dismayed that neither the good nor the bad info is coming to light on macrumors.
You can check the Mac Guides here, which people update with the latest CPU info etc., but I don't know when the Mac Pro page was last updated.