Rather, it is a vast range of highly localized but complex data processing use cases that exist across business units. The use cases are localized in the sense that they are important to one or a few people.
It is simply impossible to get IT involved to provide solutions for such use cases. It would probably take more people from IT to develop a solution for one than would benefit from it. Also, there are just too many. IT will always have bigger projects to deploy its limited resources on, so localized use cases will always be de-prioritized.