Did you read the link I provided about the Supporters Trust objectives? Their core remit is to represent the interests of the ENTIRE fan community, regardless of whether they are members or not. That is the expectation they have created themselves.
As I have said before, they have to give fans something to get behind as an organisation, otherwise they are no better than the club in asking fans to blindly throw money at them in hope that they'll do something, sometime, maybe.
I'll welcome the open meeting when it happens, and hope it doesn't just become another "watch this space" in the same way as the minutes of meetings between them and the club did, or the feedback on the meeting with the club following the matchday survey that we're still waiting on.
The Trust Board exists to lead the organisation. Sitting back waiting for fans/members to tell them what to do and/or bleating about the lack of members is a cop out and dereliction of their own stated objectives.
Take a stance or, at the very least, poll the community on whether or not they would like to see some action. Whilst I do not believe for a moment they are in cahoots with the club, the silence gives the impression that they have no objection to the way things are going.