Do keep in mind that Bandai's new demographic is girls. They're seeing that girls are taking a better interest in Tamagotchi than boys, so they are tailoring their products towards their audience. This is also probably responsible for the mascot shift: the threesome (Mametchi, Memetchi, Kuchipatchi) is being replaced by Lovelitchi, Meloditchi, and Himespetchi. Of course, we all know there are lots of boys that play with Tamagotchi, but you can't please everybody, right? Bandai is simply trying to do what their highest demographic wants, and to Bandai, girls want girlier, shinier, and cuter tamagotchis and mascots. (Also, like Orandatchi said, this is from Bandai Japan, which generally produces a lot of girly things.)