I don't think anyone's whining about Kyuubi becoming good, but how he turned good and how quickly he became Naruto's butt buddy. The relationship they had in Part I was better than the relationship now - though Kyuubi actually shows respect, not love.... Kyuubi slowly turning 180 is better than turning 180 in a war where Naruto needs more free powerups in nick of time.
Raikage did use full speed and killing intent against Sasuke. He just didn't prepare like he did against Naruto. Unlike Sasuke, Naruto had warning that Raikage will come with full power and intent to kill.
Raikage did break baby Susano'o... he chopped through the Amaterasu ribs and got Sasuke right in the face.
Feels like you're another typical whiner against Sasuke....