in the NTSB investigation, it appeared that there was literally only about 30 seconds at the outset to evaluate returning, and even then, with immediate returns

in the NTSB investigation, it appeared that there was literally only about 30 seconds at the outset to evaluate returning, and even then, with immediate returns, pilots were only able to return 7 out of 13 tests. Textbook and theory doesn't always supercede knowledge of the area and novel thinking.