The AV club article assumes that people never lie or are unreliable witnesses, even though the movie presents clear evidence to the contrary (and this is well

The AV club article assumes that people never lie or are unreliable witnesses, even though the movie presents clear evidence to the contrary (and this is well known in the real world), assumes that the police conduct a thorough investigation instead of railroading a suspect who fits their prejudicial profile, and assumes things (like the knife) are uncommon because they are foreign to himself, though they may be quite popular in other social circles. That's exactly the point of the movie, and the author completely missed it.