Looking at another dataset over at:
WebTrak JFK with the time set to 8:25 pm local on December 4.
This display appears to be corrected for the local altimeter setting. It looks like EK hit DMYHL at 800 feet at 151 knots (probably groundspeed but not sure). Then they continue down to a low of 338 feet at 137 knots in the Howard Beach area before starting to climb. Speed on this plot dropped to 120 knots (!) at 922 feet on the missed approach/terrain avoidance maneuver.
Usual caveats but this looks like yet another major miscue.
