Oracle will never, ever be competitive in that segment
I've said it many times before: dinosaurs won't innovate in areas that deteriorate their current revenue streams. Uptake -and big cost savings- on cloud is based among other things on moving to open source platforms and killing the expensive in house annual license maintenance slavery.
Oracle has spent the last decade or so trying at the same time both to widen their customer lock in (acquisitions) and to break its dependence on the maintenance revenue streams.
Which are basically mutually exclusive targets, so it is not surprising how little luck they have had so far. Maybe they have to realize that there is no other market segment where they can have such huge profit margins.
Feel bad for those stock analysts believing these fairy tales....