See, now you are also making conclusions based on Sterling's personal comments alone, which really isn't that much different from those Chinese making a big fuzz about Morey's tweet. Besides the comments that he made in a private recording, there was never any substantial evidence to show Sterling ran the clippers with prejudice when he was the owner.
Likewise, what Morey openly posted on his Twitter account could be viewed by China as an evidence that he ran a Houston Rockets team with "prejudice" against the Chinese government. Since we all know that most of these Chinese corporations sponsoring the Rockets over all these years had strong ties to the Chinese government, Morey should've known the potential consequences that would come from the comments he made.