When working in a terminal, you want to keep your hands on the keyboard as much as possible, but cmd.exe does its best to discourage you. Pasting from the clipboard is as “easy” as pressing Alt+Space+E+P. Or if you prefer the mouse (Why would you, you are in a terminal), just enable “quick edit“.
I guess giving your poor users a keyboard shortcut that can be pressed quickly with one hand is too much to ask? Ctrl+V is taken, but it screams optional registry hack. Please MS, give us a shortcut that is on by default! It can be anything, Alt+V, Ctrl+Alt+V or Ctrl+Space, I don’t care as long as we get one.