Quoting Piotr Ożarowski <piotr@debian.org>:
[Barry Warsaw, 2015-10-07]* Team in Maintainers is a strong statement that fully collaborative maintenance is preferred. Anyone can commit to the vcs and upload as needed. A courtesy email to Uploaders can be nice but not required.* Team in Uploaders is a weak statement of collaboration. Help in maintainingthe package is appreciated, commits to vcs are freely welcomed, but before uploading, please contact the Maintainer for the green light.
+1
how about making it official and adding it to the policy?
+1