Understand, in most countries "real non-profits" are in fact corporations. This is the case in most of the English speaking world.

HiFo is, by law, a non-profit corporation. A corporation is one of the only "entities" besides a "natural person" that can legally hold rights and/or take legal actions. Even most townships and cities are "incorporated" for this purpose.

And things are not that different in Germany. In order to have signers on a bank account, they must all be present at a local bank to show ID and sign for that right. This is the same issue with HiFo trying to add other Board members: None are local enough to do this.