Nothing is being withheld. The research was published once it was ready for publication. Since then the developer preview was created and released. What is still missing is the production-ready implementation to the ICP protocol. It is a simple matter of prioritization. E.g. tSchnorr was put in ahead of vetKeys because it includes a lot of the building blocks needed for vetKeys. As you can see on the roadmap, vetKeys will be worked on very soon.
Please continue any discussion in the main thread