Y'all know damn well 1989 won't be remembered. All of her singles are front-loaded (and her eras for that matter). If most people on ATRL claim Teenage Dream's [massively successful] singles are forgotten, then there is no way Blank Space and Style will be as remembered in 5 years.
Rihanna's #1s are actually iconic and remembered by the GP. Is any Taylor song remembered aside from You Belong With Me?