Probably has something to do with trolling that girls picture...
He did respond to your design question. He told you that due to bumper rules that piece cant be stationary and has to be articulated. The concept would work but you have to find a sufficient way of actuating the triangle.
There are plenty of other examples of people doing it both on here and youtube. But were not going to design your robot for you
Just search around and you'll find something you can use.