737-800 has a different wing and longer fuselage at a minimum. To conclude that a simulation on a 737-300 replicates the 737-800 crash is premature, but it is worth investigating. And if found true on the 737-300, or the 737-800, the certification process needs to be looked at.
So far my favorite - "maybe they got distracted doing the radar altimeter failure emergency checklist".
