Luna and Neville were the only ones I actually did like in the movie. Ron didn't even have a chance to be interesting because there. was. no. WEASLEY IS OUR KING. :[
I have a feeling that they ran out of money while doing the crazy special effects with the Death Eaters, so they decided to scrap even trying to include Quidditch, and instead used the same clips over for about an hour. I think my theory is quite accurate.