It looks like Boeing has decided only to publish a checklist for "engine fuel leak".
They did not call it in a general way: "fuel leak" followed by a decision tree.
In my opinion Boeing has decided to focus only on the most probable cause related to a single failure only that would cause a leak.
Having said that it remains the responsability of the Captain to analye the situation differently if multiple failures are present. Use sound judgement, as such the MRG from my old collegue pat does fit in.