When you have an automatic you have a fluid damper Via the Tq converter in sorts.
The issue is more of the external balance of the motor via the pulley. It technically has nothing to do with long term it’s more NVH but that isn’t really a thing with any pulley removal.
If JHM didn’t have LW crank pulleys going all the way back to over 15 years ago I’d probably see the possibility of reduced ware. But my B6 has WAY over 200k and all my black stone tests have come back well under the actual miles I have. So that’s something to consider.