Microsoft reps did indeed add assets for Jade Empire and Conker to its press site over the weekend, but they didn't do it to promote Xbox Originals releases for those games. They did it because a member of the press asked them to.
As associate content editor for the upcoming video game section of quiz site Kwanzoo, Tom Mc Shea preps quiz questions for games of all ages. That means he has a use for press assets related to older games like Jade Empire and Conker, and Microsoft would have a reason to dust those off and throw them back online.
"Conker and Jade Empire's assets were uploaded on Microsoft's server as a favor to us," Mc Shea told GameSpot. "We just needed screenshots and they were happy to accommodate us."