Maybe it's not so much that the buddha personally dislikes bad actions but that he understands where they lead and so makes it very clear to others that certain actions are extremely detrimental to the person doing them out of compassion to that person and out of compassion to those who might follow suit in doing bad actions if the buddha doesn't put his foot down and let people know that they are terribly non-conducive to living the holy life and lead to one's long term harm and suffering. Sometimes people only understand a stern reaction and so the buddha gives one even though in his mind he is unperturbed, calm, neither liking nor disliking the way it is, at peace, cooled. Or perhaps you're just wrong Alex.
"I don't envision a single thing that, when developed & cultivated, leads to such great benefit as the mind. The mind, when developed & cultivated, leads to great benefit."
"I don't envision a single thing that, when undeveloped & uncultivated, brings about such suffering & stress as the mind. The mind, when undeveloped & uncultivated, brings about suffering & stress."