Haven't pilot doors been made much stronger and unauthorized entry into their cabin made much more difficult since 9/11? I'm sure some changes were made in the US and maybe worldwide.
Well if we didn’t know before now we know that reinforced doors do have a negative side. Instead of arming the pilots and leaving the door alone they went the expensive route.
Of course arming both pilots could lead to a shootout, so the real solution is no more muzzie pilots outside of the middle east.