Matt Lees of popular UK game site, Videogamer is. He produced a video criticising KSI's inclusion in the event. An influential games critic, his scathing attack has been viewed almost 100,000 times on YouTube, and caused a spike of controversy within the games industry.
He told the Guardian: "Microsoft's marketing angle this year more than ever has been all about the all-in-one 'entertainment hub'. It's a very family-oriented angle, and KSI's unresolved history of making light of sexual objectification and rape didn't feel like a good fit for a family brand."

What with this and all the Chromebook 'Scroogled' stuff, I'd say Microsoft needs a new marketing team.