Yes, I’ve been able to replicate this issue. Adding the repos linked to from the installer read me does not seem to add the safe-vault package. (It does add the other packages mentioned, browser etc…)
The team are aware of it and hopefully we will resolve this soon but in the meantime if you want to try running safe-vault the alternative is to directly download it from the release page:
https://github.com/maidsafe/safe_vault/releases
There is a how to set up a local test network to try it out here: