You're partly right. LED and projectors are capable of emitting a much more effective beam of light, and when they are properly engineered this can be done much more effectively than most old halogens. I was fairly impressed by the headlights that came with my current car--above the line the headlamps care about it's just about total darkness, and viewed from the front the lamps look just like an evenly white sphere. There's no "hotspot" on them that will roast someone else's retinas. The areas my headlamps aren't illuminating aren't areas I'm going to care about, like the night sky. I'm not going to hit any bridge overpasses with my car, either. The problem isn't the focus of the beam, it's the dazzle that's caused by too much light being produced from too small a section of the bulb's surface. You can get 1,000 lumens from a six inch diameter circle, or you can get 1,000 lumens out of a quarter-inch diameter circle, but one of these is going to blind the hell out of whoever looks at it.
The flipside of this is that a lot of manufacturers hoping to cash in are just making really bright headlights with a bunch of LEDs in a bundle that does blind anyone who glances at them because they're just a bunch of really high-intensity LEDs with no effort made to properly diffuse their output, and selfish douchebags are having them installed at an alarming rate, because in their little minds, "brighter == better". ...and this isn't like illegal and unsafe window tints, where an officer can actually use a little testing device on the spot. It takes a much more complex camera system to determine if a headlamp is bright enough or simply blinding everyone who goes near it. ...and if I were a cheap bastard with no moral compass, I would have no problem manufacturing a headlight that emits 3000 lumens by just arranging ten 300 lumen LEDs in a grid, nevermind that each of these is far too bright with such a small surface to not leave a persistent spot in another driver's vision. There's plenty of people out there who will look at "3000 lumens" and think "wow that's the brightest bulb I've seen--I want some!"