The people railing here are ignoring the fact that for whatever reason (he didn't actually care that much, he was sick and didn't have the time) didn't explicitly provide for this museum to be maintained into the foreseeable future. That may or may not be a bad outcome but it's what happens when someone passes and they haven't made an explicit provision with funding for something they owned.

By and large, museums need to cover their operating costs and apparently this one didn't.