As many have pointed out, the ADI is perfectly capable of showing the aircraft's response to inputs.
This is not the problem .. nobody tell the contrary
The problem is to see the position of the stick
The ADI may well show an attitude of descent while the stick is in position to climb
The ADI don't show the stick position
You will (suppose) know his position after the aircraft response on the command (visually on the ADI)
Sometime (if wrong command by the stick) it's too late for counter command