Why? Sponsors want exposure, and they are getting it in spades. Everything, close to every conversation is Rossi-Ducati. Just about everything written is still Rossi-Ducati. Most of the sites & mags write on Rossi-Ducati. I just finished reading a prominent magazine talking about Rossi-Ducati and the dire situation, and the very next page at the conclusion of the article was a full page ad using Rossi-Ducati as the image to advertise the Air Asia British GP. Gpone just tried to make the stats for season to season meaning something on Rossi-Ducati. Crash, not far behind on the Rossi-Ducati saga as much as any other GP dedicated site. Kropo just wrote a dissertation on Rossi-Ducati. Dorna's video feeds give ample air time to Rossi-Ducati.
Loris may have been understandably overlooked; however, Melandri and Hayden never got the volumes of written material on the woes and failures of Ducati (and you can throw Casey into that list). Notwithstanding, it was clearly an issue that some (apologists) ascertained and decerned way before Rossi through a leg over the bike (which says something about the "experts" ability or willingness to detect a story not associated with Rossi, and let us know its clearly not his fault while it was clearly ever other rider's fault.) While Melandri was a 'headcase', Nicky 'just not good enough', and Casey a freak but a 'weak-minded man lacking intestinal fortitude' was on the pens and mouths of every journalist and former racer, not to mention crew chiefs; NOW they all know its Ducati's fault and to a lessor degree, related to the single-tire suppler. Make no mistake, the sponsors are getting a grip of exposure, if anything, they are getting overexposed, if that is possible in terms of marketing leverage.