POH checklists tend to be a bit lacking in general, and no one uses the emergency one's during an emergency. It's much more likely most pilots will use a generic memory checklist.
It would be silly to assume the aircraft manufacturer checklists are the be-all and end-all and I say that because if you look at a POH and then look at, for example, the engine manufacturers manual they often are somewhat different about engine handling. So who knows best? The aircraft manufacturer or the engine manufacturer?