New tools = New security bugs we still need to find. If you know your tools there is less risk that you produce security bugs. You know the sideeffects of all

New tools = New security bugs we still need to find. If you know your tools there is less risk that you produce security bugs. You know the sideeffects of all the commands and functions. If you use a black box and trust it fully, you will (unknowingly) find ways to make new security holes noone ever thought of before. I'm not saying that we should not innovate, just that we should not rush head first into the blue sky thinking everything is fine just because we use the new shiny thing where we can't make bugs ever.