The problem is that they react to lights from the opposing vehicle, but they are going to hit your eyes before they detect your lights.

That's with simple high beam assist. The matrix ones you refer to actually have another feature which makes things even worse; they progressively dip the light in parts, but combined with the first effect this means that you have a few seconds of being blinded before all of their component leds have been dipped.

Not to mention that they are only reacting to something directly in front of them for the most part -- meaning you can be blinded on curves, or when turn around and looking at them off axis (say as they wait to turn into a road).