The Fed did go to far. They flattened the yield curve.
Trump is great on economics. The Fed is wrong.
The question really was at the time (a) did the yield curve invert because of Fed action, or (b) because of what was seen then as a slowing in the global economy. As what does past history indcate, that (1) an inversion of the yeild curve is a cause of a recession, or (2) is it an approximate 1-year advance warning of factors building towards a recession. The warning in item (2) is exactly what the last yield curve inversion represented.