This isn't the first time Power Rangers (or rather Saban Brands) has made headlines (or not) over the issues of race and casting. No one will ever let them forget the suspect casting of Walter Jones* (a African-American man) and the late Thuy Trang (a Vietnamese-American woman) as the Yellow and Black Power Rangers in the original Mighty Morphin' Power Rangers. And only recently with their first entry into the series since Time Force, Power Rangers Samurai, they released a casting call for the Red Ranger that specified only white male actors were allowed to audition for the role. However, this is the first time that they've specifically rejected an actor over the stipulation that they already had one Black actor aboard and thus had no interest in casting another.
Ciara Hanna tweeted "good news" and changed her twitter profile image to something more yellow, presumably a roundabout way of celebrating her new gig as a Power Ranger. Not surprisingly, nothing about this issue hasn't hit mainstream news sites, there's not even a peep about it on TMZ, but it's definitely caught the attention of Power Ranger fans all over the internet.
*Though according to some rumors I've heard, he originally auditioned for the Blue Ranger (Billy), but settled with black because he liked the color.