I actually prefer the readout and warning light in a way.
Atleast u know to back off and check it out, check temps etc.
I do like and tune alot of nistune's im just not 100% certain of how well they detect knock and switch to the knock maps.
I still set the knockmaps up.
One thing to not is the stock knock sensing on the timin maps is normally only on a small percentage of the map and i have never seen the area flagged on the map go near or above max torque, i suspect the knock sensing gets confused with valvetrain noise