The "acoustic" windshield in my '17 Ridgeline makes for some interesting artifacts - even to the human eye. It diffracts bright points of light more than "regular" windshields. It's not dangerous, but it's definitely noticeable.
Also, keep in mind we're talking about "dashcam videography" here. Correct me if I'm wrong, but the primary purpose of dashcams is to provide supporting evidence for liability claims (and to make money off YouTube). These are $100, cheaply-built, purpose-driven devices - not professional broadcast cameras costing thousands or tens of thousands of dollars. I swear some people will complain about their water being too wet!