Apples to oranges.
A light tint, or light smoke will be a miniscule amount of difference, such as a 87% tint. The red in the taillight is still very visible during the day as well. Definitely not the black, "murdered out" look.
I can't say the same for a dark smoke, such as 67%. Losing over 30% of your light. This is pretty dark. They actually have static cling on covers that are nearly 100% black. Must be removed at night.....bad option all around IMO.
I have 20% tint on my windows, and I can see out perfectly fine, even at night. However, ive been in many vehicles with illegal 5% window tint, and it's near impossible to see out of at night. so for so many to say it's going to cause nothing but problems....i disagree.
Yes, with a very dark tint I would agree with them to an extent, but a light tint will be perfectly fine. I have a 2010 sedan and it's on my to do list, probably my headlights too! very light of course, and will be a protective film so it will.have dual purposes.
OP, what brand of film did you use? And what method did you use to apply, Dry or wet?