We are looking into the missing DLLs as I too do not see them on my installation, but I just wanted to check if you were trying to run a workspace and encountered an error about these DLLs, or if you were just looking at the installation folder and noticed they were missing?
If you were running a workspace and got these errors, can you please share the job log or any error messages that show the path it was looking for so I can share that with our development team?