People are shocked that the early reports of the G.I. Joe movie are bad. Look at the source material. It's based on a cheapo cartoon from the 80's. Anything is an improvement. What are you expecting Realism? Symbolism? There's shooting and running and you will like it! So there.
People were upset with the "Godzilla" remake from "The Independence Day" guys. People complained that the monster looked bad and the plot was lame. It was based on a bunch of cheesy monster movies. Who was banking on it to be good?