No matter what the financial model is, I think that They have chosen a model that is optimal by worrying and worrying a lot.
But what matters most to donors is
How donations are used transparently ...
(including operating expenses)
And what is meaningful outcome from donations
Furthermore
If an institutional framework is set up created in the idealway, the organization will be more trusted.
(The morality of a person is always challenged.)
Thank you for your input!