As for SPARC, Oracle does seem to have invested heavily, in part because of the elaborate self-delusion that Ellison seemed to have that he could develop magical database hardware that would somehow repeal the laws of physics.
As for the warning, it is indeed apt; Oracle is a mechanized and myopic profit-maximizer -- a remorseless and shameless corporate sociopath that lacks the ability to feel anything at all for its customers. Yes, your products will die of asphyxiation and incompetence and so on, but the much more acute damage will be to one's sense of purpose in the world: working for Oracle is a nonstop trip to either an existential crisis or a mercenary's existence (or both). And as many discovered on Friday, working for such an entity out of a noble (if misplaced) sense of duty or loyalty is pointless; Oracle feels nothing for you, its employees, for the same reason it feels nothing for its customers or its partners or the domain or the industry or society writ large: because it feels nothing at all.