Yeah those seem to be about the best representation I've seen so far, takes a lot of subjectivity out of the demonstration. Hard to do with a camera in any case; for example if I set my mirrorless camera in full manual mode, white balance it, then try to video lights from the driver's seat (or from next to the vehicle parallel to the driver's seat looking forward) - the recorded footage still looks absolutely nothing like what I saw in person and it's pretty much useless.
That makes shopping tough too. You can see a set of lights that claim they have a kajillion lumens but until you've pulled an all nighter driving with them it's hard to tell if they're going to give you a headache from the color or have you squinting past dust on your windshield, etc.