There are counter examples to everything, that doesn’t make it bad advice.
Some people smoke cigarettes their whole life and live until old age without ever getting cancer. Should we conclude smoking does not cause cancer just because there are counter examples?
As you said, the advice is meant to maximize the chance of success. It is still not sufficient or without exceptions.
In the end, advice is only valuable if you put it through your own filter and use your own judgement to make the best decision.
Some people smoke cigarettes their whole life and live until old age without ever getting cancer. Should we conclude smoking does not cause cancer just because there are counter examples?
As you said, the advice is meant to maximize the chance of success. It is still not sufficient or without exceptions.
In the end, advice is only valuable if you put it through your own filter and use your own judgement to make the best decision.