No, it says that moving the pitch trim switch to cutout disabled the trim buttons on the yoke. They should have still had manual pitch control the good old fashioned way (with the primary control inputs through the yoke), as well as the manual pitch trim wheels on either side of the throttle quadrant. However, it appears that due to an existing issue with the 737 design, they could not use the manual trim wheels for some reason while they were holding the yoke all the way back. That's a very bad situation to be in, as controlling an airplane that's severely out of trim can require huge amounts of force on the control inputs and could have just exhausted the pilots.
They don't have manual pitch control through the yoke (elevator) when the stabilizer is severely mistrimmed because the stabilizer is "stronger" than the elevator -- it's a much larger surface, the entire horizonal stabilizer moves. Yoke movement doesn't move the stabilizer.
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No, it says that moving the pitch trim switch to cutout disabled the trim buttons on the yoke. They should have still had manual pitch control the good old fashioned way (with the primary control inputs through the yoke), as well as the manual pitch trim wheels on either side of the throttle quadrant. However, it appears that due to an existing issue with the 737 design, they could not use the manual trim wheels for some reason while they were holding the yoke all the way back. That's a very bad situation to be in, as controlling an airplane that's severely out of trim can require huge amounts of force on the control inputs and could have just exhausted the pilots.
They don't have manual pitch control through the yoke (elevator) when the stabilizer is severely mistrimmed because the stabilizer is "stronger" than the elevator -- it's a much larger surface, the entire horizonal stabilizer moves. Yoke movement doesn't move the stabilizer.