That's not true at all. If you go
here and search by article date, you'll see that we've reviewed some very good games recently.
I'm sorry to see Criminal Intent get a low score, because I was really looking forward to it. On the other hand, you really can't score a game highly when it has so many bugs.
Of all the games I've reviewed for AG, there was really only one (Legacy: Dark Shadows) that I strongly disliked. Most games have some flaws, but I wouldn't say that most games are half-assed.