What a weird movie to just think is "decent." I could see both hating it and loving it, but nothing in between. Butch Cassidy and the Sundance Kid is decent.
There's wacky bits in other PTA stuff too. Like the Asian kid with the firecrackers in "Boogie Nights." I hate that scene.
I'm assuming you've never seen For a Few Dollars More? I'm not sure I can deal with someone not liking that one.