Why does Magnus still not want Hans to play tournaments?

If you listened to the recent interview with Jan Henric Buettner at Weissenhaus, you heard him reveal that Hans has been invited to Paris and that Magnus and his father were not happy with this.

I don't understand why Magnus is still opposed to Hans playing in tournaments. How can there still be any doubt that he is not cheating? He's played so many matches and tournaments, both OTB and online and maintained his level, how could he possibly be cheating?

Or is this about something other than cheating? Has Magnus said anything on this topic recently?