In the context of everything I've seen in K-pop, I think the song and MV go well together. There's a certain desperation in the tone of the entire song which I think really suits the video. So much sexiness. So much.
I agree that the 'yeah' is really irksome, though. I also could not be more sad that one of my favourite K-pop rappers doesn't rap in this song. Granted, she's got a nice singing voice, but it's just not the same without her rap addition.
My overall thoughts are that it's an OK song. I could barely deal with the 'yeah's, but had it not been for those, I'm sure I could have quite liked 'Hush'.