Get real guy, that was stab trim runaway.
Forced to agree on the wording "Runaway Stabilizer" as even Boeing use it his AD 2018-23-51. But this very AD 2018-23-51 was precisely issued to urgently add this information into the Operating Procedures:
"The 737-8/-9 uses a Flight Control Computer command of pitch
trim to improve longitudinal handling characteristics. In the event of
erroneous Angle of Attack (AOA) input, the pitch trim system can trim
the stabilizer nose down in increments lasting up to 10 seconds.
In the event an uncommanded nose down stabilizer trim is experienced
on the 737-8/-9, in conjunction with one or more of the indications or
effects listed below, do the existing AFM Runaway Stabilizer
procedure above, ensuring that the STAB TRIM CUTOUT switches
are set to CUTOUT and stay in the CUTOUT position for the
remainder of the flight.
An erroneous AOA input can cause some or all of the following
indications and effects:
• Continuous or intermittent stick shaker on the affected side only.
• Minimum speed bar (red and black) on the affected side only.
• Increasing nose down control forces.
• IAS DISAGREE alert.
• ALT DISAGREE alert.
• AOA DISAGREE alert (if the option is installed).
• FEEL DIFF PRESS light.
• Autopilot may disengage.
• Inability to engage autopilot."
You can't deny that those information was unknown to the JT610 crew. Please respect that there wanted to survive. Human limitation in a unknown situation is very hard to study especially in high stress situation. This is not the first accident that a simple action could have avoided. The tragic fact is that this destroy lives and this must be addressed. So what can be done ? Blaming the pilot is not a constructive action addressing the identified unsafe condition.