There were many and long pleas to Turbine to give us the Disabler . . . and some design attempts that proved less than satisfactory . . . before we got the Stone of the Tortoise.
Many (most) users of the disabler will agree with you. And, indeed, it is what we originally asked for.
But . . . after many and long and bloody battles . . . this is what we have. And it is quite good when compared to the alternatives. I doubt Turbine will be making any changes.
Meadowlarke Sweetweed on Landroval. Also nephews and Bounders Ayrhawk, Wrennsong, and Little Meadowlark Sweetweed
Club Eclair roleplaying group on Landroval currently capped at Level 45 in eastern Angmar for all Shadows of Angmar end-game content (Alphred Troute, Hedgerow Shrewburrow).