Well, not everybody is The First World and have ventilators plants in their border. But some place will love to have access to free and unencumbered blueprints to be able to do something locally with what they have at hand ?

But you are also right that people are needed to administer those. No doubt about that. As is also true a person can administer several of those machines.

And, just because something tries to address A only (and not B and C), does not mean we should not do it because B and C. Separate issues. Beside, to train people, you need spares to train on.