It can, since video shows how the work is actually done, including the shortcuts, extra steps and different order that experienced crews develop over time. Comparing that with the written procedure often shows gaps that nobody would mention in an interview.
Those gaps are not always problems, since sometimes the crew has found a better or safer way and the procedure should be updated to match. Either way, the comparison gives procedure owners real evidence of work as done instead of relying on what the procedure assumes, which makes reviews far more useful.