I could imagine a situation where a poorly trained person immediately goes for gear and flaps when they hear "go around". For all intents and purposes, the FDR suggests they were both incapacitated. Trying to find logic in their actions will be futile. The CVR will only help a little in my opinion.
-At 15nm to go, they were at 10,000ft at 250 kts. At that stage, a competent crew would see that they had excess energy. The last (only?) logical action of this whole sequence was the disengagement of the AP.
-At 10nm to go, they were at 7000ft, still close to 250kt. If you thought you could salvage it before, it's clearly not going to work now.
-At 5nm to the runway, they're actually on the glideslope. Well done! Still 250kt and config 1 though. How'd they plan to lose over 100kt while on a 3 degree path? Forget about a stable approach. Now is a great time to go around.
-Less than 2 miles from the runway, at 500ft, they were at 220kt descending at 2000fpm, with the CRC sounding, and the EGPWS alternating between sink rate, terrain and gear. The ASI is well into the red band. Apart from death, what outcome could one reasonably expect?