9. Upon the adoption of this Transition Article, and until further action by the ICANN Board, the GNSO Council shall assume responsibility for the DNSO General Assembly e-mail announcement and discussion lists.
Hmm, but that seems to suggest a few important details,
1. The archives are supposed to be maintained.
2. Announcements are to be posted here.
3. The GA may organize itself.
4. The GA is to be a place of discussion.
5. There are no restrictions on matters to be discussed and no protocol as to how decisions made here are to be reported.
I would suggest organizing the GA into discussion and opinions and reports as a shadow of the ICANN structure;
http://www.icann.org/general/org-chart-12jan04.gif
So it seems that ICANN has not blocked GA involvement but simply left it up to participants to organize from the bottom up in a truly open and transparent and free manner. A good out for all concerned participants.
Eric