What steps can be taken to mitigate this?
Be an employer of choice. What can you do to make people want to work with you, not out of necessity but because your better than the alternatives. (Pro tip: if you’re paying the lowest rate you’re allowed to without braking the law you better be offering some other incentive)
Its improved a lot since the early days but the docs can always be refined further.
If you find a something that needs improvement opening an issue over here will get a few eyes on it.
https://github.com/godotengine/godot-docs/labels/topic%3Adotnet