so the article is about her make up style changing? i'm not sure what point the article is trying to make. seems like more of a personal opinion.. too much make up or whatever. looks fine too me.
as far as onstage: styles change for each concept... you may not like the way it looks but hey remember its just for show, the real person is underneath.
as far as the make up off stage, the girls are getting older, they may want to look more mature. everyone grows up.