As I mention in the bug, if you happen to see a very very long one, you can always specify a narrower filter using -Filter, right?

Also, it's quite unlikely that people will be just browsing packages using the console...

I wouldn't care much if update-package had package ID completion for the selected project, honestly... But because currently I do have to specify the full package name, there's no other way to get it than listing it or opening the .config (yuck!)