> At 05:40:44, the Captain called out three times “Pull-up” and the First-Officer acknowledged.

> At 05:41:30, the Captain requested the First-Officer to pitch up with him and the First-Officer acknowledged.

> At 05:43:04, the Captain asked the First Officer to pitch up together and said that pitch is not enough.

Take a look at the chart of control column position deflections. They're jolting around like crazy at +10 to +15 aft starting immediately at the first big MCAS trim event through to the end of the recording. That's because the stabilizer mis-trim is exerting considerable force on the elevator. The captain wasn't calling for aid on the column for shits and giggles.

Data for "Column forces were incredibly high" would be the force on the column that the pilots experienced. Column position deflection isn't that. Column position deflection data is data that the column position was changing rapidly. Concluding that column position was changing rapidly due to "incredibly high" forces as opposed to say unpredictable forces is speculation.

So your take is that the column shows near constant movements of multiple degrees back and forth practically on a second to second basis, in the grip of someone trying to hold it steady at +10 aft, and who asked several times for help keeping it back enough to keep the nose up, but that that is not in and of itself indication that the force was "high"

okay

You're shifting the goal posts. Obviously the force was "high" because the trim was out of position. That's different from "incredibly high" and can mean anything from "they gotta pull a little harder than normal" to "they have to pull as hard as they possibly can".

Control column position is not a delta. On a 737 that position directly correlates to the position of the elevator in degrees. Elevator position, stabilizer position, and airspeed as they were we can infer a force; corroborated by their own words, it's reasonable that this situation is described in the "mistrim nose down" sketch about 1/3 of the way down here:

https://www.satcom.guru/2019/04/stabilizer-trim-loads-and-ra...

05:41:30 - PIC requests SIC to pitch up with him

05:41:46, 05:41:54 manual trim not working, that is absolutely a trim wheel hand crank attempt; fairly clear (to me) but not stated is that both pilots were not simultaneously cranking on the trim wheel, there's plenty of anecdotal evidence that this exact configuration puts to much upward force on the jackscrew that it is difficult to impossible to turn.

05:43:04, PIC asks SIC to pitch up together says pitch is not enough

As for the noisiness of the control column position data, it could be partly the stick shaker, it could be light turbulence, the accel vert row at the bottom shows it's a bumpy flight, and pitch and roll attitude is also variable but less so than vertical accelerate. And accel vert gets noticably more perturbed as airspeed increases. I think it's light to moderate turbulence, but I'm not certain. A search for PIREPs and weather reports at the time could corroborate it.

>we can infer a force

Right, and my point is that until someone actually does that calculation we don't know how high that force was.