Do you lock you house? Door locks are not secure so why have them?
Do you leave the keys in your car? They aren't very effective so why bother to remove them?
Those are just annoying deterrents. If a criminal wants something, especially in computing, they will have it. If you believe that a bastion host protects you, I have a stockpile of bridges that you can buy. Same goes for AV. It only stops stupid. Nothing more.
Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden