Allen had a net worth of something like $20 billion. That’s enough money to fund the museum for the next 5,000 years. Maintaining a project like this is NOT expensive.
Try: ssh menu@tty.livingcomputers.org
If money is simply set aside to fund something, somebody still has to hire somebody to manage the thing, and oversee their performance, and fire the manager if they underperform, and find a new manager, and sign off on big decisions like a change of space, and so forth. But if that trustee just... doesn't care to do that... then what exactly are you going to do? Somebody would have to sue to enforce that overseeing, but frequently nobody cares to sue or has standing.