Rap journalists have not, historically, done a great job of covering women. Female rap artists who pander to male audiences are more likely to garner critical respect. It's understandable, then, that while the Internet has opened up more lanes for different kinds of artists, more and more female stars would start finding audiences without the "OK" of the critical establishment.
That said, the last year has seen a surprisingly large number of emergent female rap artists getting considerable coverage, and while it's unquestionably an exciting development, to be completely real—some of them aren't quite ready for prime time. Whether it's due to wish-fulfillment on the part of male critics, or a belated attempt to correct years of sexism within the rap writer hierarchy, writers from outside the culture have been celebrating an increasing number of female rappers without really doing due critical diligence, lobbing artists to the upper tiers of coverage, then dropping them days later.
The hype-machine trajectory isn't a new one for artists of either gender, but it feels particularly pronounced with female rappers. This could also be in correlation with the lack of attention paid by the critical mainstream to female R&B artists, overlooked as they are in the fascination writers have with Frank Ocean, Miguel, The Weeknd, and Jeremih in recent years.