If you watch the video linked in the article on Electrek that do a decent rundown comparing the current headlight with the new one. They both look bright enough to me, or at least similarly bright. (I imagine the exposure on the camera doing the filming is actually dimming things down a bit)
Regarding the light pattern - the new ones appear to have a very sharp edged pattern. Almost like the lens isn't really diffusing the LED light at all. The old/current headlights do appear to diffuse things a bit so you don't see those sharp lines. I think I prefer the current headlight better. Will be interesting to see if there's any particular advantage to the newer lights.