It's just plain stupid. Simple as that. There's little plot evolution. There's I'm sorry, I'm lost for words. It really is just 5 or 6 fight scenes. Teenage boys might like seeing a pretty women kicking butt and taking names, but no one else will.
p.s. I only went because I'm truly addicted to films.
p.p.s. I was being sarcastic about the name. Ir's not really called "Resident Evil 4: Women Kills Things In 3D," but if the working name had been "Resident Evil 4: Appealing to hormonal teenage boys" I wouldn't have been surprised.