I always thought it was more of a “see an optometrist” flash. Even misaligned HID high beams aren’t more than a minor nuisance for people with normal night vision. But if even factory installed and aimed LED headlights are bothering you enough to completely blind you, you have an underlying condition that may or may not be treatable. Driving at night may not be something these people can do safely. All the more reason for better transit.