That document assumes that the team "parrot-porters" is a group of
debian developers working together to maintain parrot in debian, it is a
document aimed at debian developers. However I cannot find a debian team
called "parrot-porters". I assume this is the name that the parrot
project uses for those who are porting parrot to various platforms.
What you'll want to do is have someone who is a debian developer (DD) or
debian maintainer (DM) to upload your packages into debian and have them
be the official maintainer. This is what we do in the perl group, so
when a bug report comes for one of the 300+ packages we maintain, any
one of us can fix it.
If you can't find a DD you can have someone become a DM which is a much
less time intensive process, though it obviously helps if he or she has
experience packaging for debian since they get upload rights.
In short, "teams" i.e. debian-perl are internal debian groups with
upload rights.