No support, these game modes are intended to be much more difficult than normal/regular ironman mode. People could just stockpile vote books on a different account and feed them to their GIM/EIM if the cooldown was reduced.
So you're saying people would vote on two accounts at the same time?
There's already a per account limit and GIM/EIM's have a limited amount of players, that is a non concern.
If an entire group wants to give their vote books to one person, they should be able to.