One of the easiest ways to overcomplicate a process that is designed to be run by humans is to spell out every possible decision.
That’s not to say decision trees like the one above aren’t useful in helping people to think through options or scenarios, they are. But often it’s impossible to pre-identify every possible scenario – especially where other living things are involved – and the attempt to include everything we can imagine in a process simply slows down its execution.
For the most part, simple, black & white, truly binary decisions can be automated.
For everything else we want people to think before they act. In which case the best instruction starts with “Use your judgement and experience, together with your knowledge of our purpose and values”.