Well, if that’s true (by airman1900 above) it’s a combination of fixes, which many here have advocated.
Better would have been a system which doesn’t affect the elevator trim at all. But that’s the 737, even the auto land on the 300 required a massive stabiliser up input at 400 feet to enable the flare. If you then had an engine failure, the subsequent (manual) go around required mucho stick forward to avoid a huge pitch up.
having got away with that and had it certified, I guess Boeing thought they could fix just about everything via trim...
edited to remove italic...