The text following your quote substantiates their claim, you should respond to it: "their biggest previous single, 2000’s One More Time, peaked at No. 61 on the Billboard chart in the U.S., and they had limited Internet presence and no live performances in 2013"

I know and love Daft Punk as well, but by these and other commercial objective measures they are obscure. Daft Punk are famous in some circles, and unknown in others. In particular, Get Lucky has achieved chart success previously unknown to Daft Punk, which is interesting and makes one wonder how they broke through this time and not before.