Why can't the Adobe Flash player send key strokes it doesn't handle to the browse in which it is running?

Why can't the Adobe Flash player send key strokes it doesn't handle to the browse in which it is running?

I'm a heavy web user that uses the address bar constantly while browsing the web. I often use Ctrl + T to open a new tab or Ctrl + D to move focus to the address bar so it is very annoying that these shortcut keys do not work when a Flash object has focus on the active browser tab.