True. But I’ve taken the trouble of actually learning about lighting and the designs thereof. There are plenty of people who are ignorant on the subject of lighting. I fight against that ignorance.
I think I may have gone a step farther than you have. I actually purchase, install, and test the HID and LED bulbs in my vehicles. Occasionally I discover they don't work as well, but sometimes they work better. This ratio of good / bad has been my experience with headlamps(25% success rate). The opposite is true for my experience with tail lamps and brake lamps (90% success rate).
Something you may relate to:
I used to have an R56 Mini Cooper S. I upgraded
all of the incandescent rear facing lighting to LED bulbs with great success. The housings were completely filled with light, and they were brighter. A side benefit was the 'instant on' is proven to reduce the reaction time of following drivers.
I've done the same with the rear lighting on my Ford E350, and my Corvette. The thing is, I upgraded the headlamps of those cars too. I had to test a few different bulbs, but they work. There is a crapload of confirmation bias by people that purchase and install shit bulbs, I've tried to educate friends and neighbors. Some listen, and some do not.
As I said before, it isn't cut and dry.