Crowchild isn't magically animating 300% better for the gold membership payers, hes still doing the same thing for them as is available with the free members. Its the exact same as a free membership except with more characters. On top of that, everyone outside of gold membership already knows what to expect with gold membership.
The release of premium content temporarily each month has nothing to do with the gold members, they get nothing out of voting for it. You do realize that the vote has literally nothing to do with them, correct? There is no correlation between the paying members and this vote for temporary free release, they get nothing out of it and 'what character will most likely bring in paying subscriptions?' is purely subjective.