I agree with you OP ... she's become a trumped up little madam who seems to have forgotten what it's like to be a contestant ... 
I wasn't overly impressed when she slammed Kandy Rain for wearing too little and then the next thing you know she's out on stage showing all but her lady bits and gyrating like a pole dancer herself. The "I'm an established artiste" thing is a poor excuse for hypocrasy.
Now we've got her nearly choking when she HAS to admit that Danyl is quite good .. you can see from her sour face that it's killing her to say a good word.
In my opinion Cheryl is in danger of fast becoming the nations EX-sweetheart.