Try arguing the "should" versus "must" when you find a "2" in your annual line check report!
According to the handbook, only captains should be doing them anyway, so how many captains give a flying f*&k about getting a 2 for "PA"?
On a more worrying angle, the real danger is for someone on command course getting an adverse comment and a 2. As much as we make fun of it here, that could potentially cause heartache for a command trainee.
What an archaic system......