That's a good point. Is there any other camera in the same price range with the same specs and performance that can last indefinitely in high heat? I think disclosing the temperature limits and allowing the sensor to be displayed in the recordings might help to temper some owner expectations. If it says in the manual that the camera will shutdown at 170F and I can see in the recording that my car is reaching that temperature, then I wouldn't be as disappointed in discovering that it stopped recording rather than turn into a puddle of plastic, which was what my previous 1080p+720p dashcam threatened to do until I decided parking mode wasn't an absolute requirement in the summer heat. Ofcourse if they can improve the situation without noticeably sacrificing image quality and reliability that would be ideal.
It does only have half the pixels though, so it would be reasonable for it to generate half the heat, which is approximately what happens.