Well, she said at the end of 2014, that she wants to bring in 2015, music that makes people happy, cheerfull songs! It's the music she likes to do nowadays, and it's been a while since her most dramatic ballad songs, a long while... I'm a Kana fan, but of course, sometimes makes me wish for something diferent from her (I was disappointed by Torisetsu, way to boring, Moshimo is way better and more fun). BUT then she brings amazing songs like No.1, and it's impossible to get tired from her (it's like a reload of love of kana all over again).
But I'm must be honest that Kana is not for everybody, but isn't it all the same for all the other artists? you can't please everyone in the world.