As an era, it was bigger than the music itself.
She's been literally everywhere, she's still fresh in people's minds, they still care, that's what I'd consider important.
But if you look at just her stats

embarrassing. Awful single choices, ignoring her global markets, bizzare promo, genuinely terrible album sales. People here know she released Anaconda, but they have no clue an album was out and they don't know any of the songs. It was a mess.
All things considered campaign-wise it did okay, but to call it successful is a reach.