I don't think its too much to ask for a vehicle with a name "Bronco" on it to hold up to abuse of the said reviews. Especially if Jeep is the target. I would expect a Kia SUV to have these issues. While this isn't the "end of the world" it is concerning. The video I posted from YouTube was a production Bronco Sport for reference that over heated.
As mentioned, the good news is there is the Mid size Bronco which appears to be the real deal and will handle the extremes.