"Dazzling" isn't the same as blinding. You, and others here, are talking about a level of glare that can be uncomfortable to be sure but it doesn't rise to the level of impairment that would cause a driver to be unable to continue driving down the road. The use of 'blinding' used here is more along the lines of a conversational 'blinding' for which dazzling is a very good synonym. I too have been 'blinded' by the glare of other car lights or the sun or light reflecting off snow etc. But that is a comfort issue and isn't likely to cause an accident or even more than a momentary discomfort.

Then there is the clinical definition of blinding which could cause more than momentary discomfort and could lead to an accident. But another car light or a bicycle light or even sunlight isn't likely to cause that kind of permanent blindness.

On the other side of the coin is the motorist. Motorists don't think for a single instant about whether or not their lights are blindingthe cyclist ...not simply dazzling but truly depriving them of sight...on the side of the road. They hardly thing an instant what effect their lights have on other motorists.