You never know, Rihanna may become an institution or be forgotten. I don't waste time worrying about it. There are at least a hundred artists I'd rather listen to than her (or Hot Chelle Ray) but ya know, I just can't get excited about whether or not they are more successful than someone I like. That's someone else's taste, not mine.
FWIW, the total number of Led Zeppelin, REM and Depeche Mode recordings in my collection: Zero. Same as Rihanna! Another reason the writer's "extremely disappointing facts" don't resonate with me.