haha there really is no pleasing some! Do what they ask and they STILL moan. :roll:
Jordy, the Package Manager download is mainly aimed at people who have said they do not want to download ANY content from the official site or recognised 3rd party developers. Most content from these two sources come as self installing files and thus the user doesnt need to worry.
For everyone else creating content, this package manager can be downloaded either by the user installing said content, or by authors in order to make their work self installing just like the professionals.
It also means there is now no need to obtain the RS Developer Tools if all you want to do is install RPK files from other people.