The idea with screening every one is that nothing should get into the secure area. I know it sounds stupid to screen a pilot (who if they really wanted to wouldn’t need a bomb to kill everyone onboard) but what if something explosive is planted on a pilot?
I’m not to sure how well a 747 flies when the Captains legs are blown off and sprayed around inside of the cockpit.
Or even something small hidden in your flight bag, tear gas in the cockpit that would be fun, unless you get the smoke mask on really early in the piece the damage is already done.
Did you leave your bag outside your hotel door for a few minutes this morning? How do you know no one was in your room while you where out for dinner?
Or maybe I have been sucked in by the anti-terrorist propaganda?
All the above said, I still think telling pilots to remove their wings because of the sharp bits is going just a little too far.