Delphy's Dashboard is for checking package file content, that which is to be found in Mods\Packages within the TS3 user game folder in Documents. It wouldn't know what to do with the game's program or any other kinds of package files.
What we are trying to say is that reinstalling the game replaces the program files you already had in place with the exact same program files. There is possibly some unexpected side-effect/benefit you are getting temporarily by going through that process if you are leaving your game saves and the user game folder intact or putting them back in after the reinstall, I mean logically there has to be a reason why it works better one time after doing so. But the reinstall itself is not changing how well or poorly the graduation scenario runs.