Many
of the games in the series have been rereleased at least once, often with more features and advanced options, so it's not
out of the
realm of possibility,
especially now that we live in an era where post launch support through updates is completely normal.
First that you have misjudged the chronology on how the IPCC formed, second, echoed by many, that it was too broad brushed (von Storch and Kloor), it doesn't take into account how the IPCC bureaucracy has turned over several times over the years (Eli Rabbet), you've never provided proof as to how the IPCC's control extends
out into the academic
realm, and it completely overlooks all the other
possibilities, ie, the strength
of the science is robust and the risk dire enough to receive to the amount
of funding, attention, etc. and any other option at the time would have been outrageous,
especially considering that what has been predicted is currently happening.