There have been a lot of discussion regarding drupal.org's policy on 3rd party code in drupal's CVS repository:
I think an ideal solution would be to include a downloading mechanism in Libraries API that other modules or install profiles can use.
For example, I'm developing Drupal for Churches and really wanting to include libraries in the distribution to make it easy for new drupal site builders to get started. Something that seems simple like including TinyMCE with the Wysiwyg module in a distribution on drupal.org is impossible given drupal.org's current policy.
If Libraries API could fetch libraries, it would be solve many of the headaches caused by this policy.