Why do so many people think this guy is a good defender when he is consistently getting killed by his man?
Because unless you actually watch the team, most people just go by reputation. AP came into the league as a good defender a couple years ago and that's what people still remember.
Us Raptors fans however know better. His decline started last year and this year he is considerably worse. Can't expect much from a 33 year old SG who is playing huge minutes and asked to be a contributor on both ends.