You're missing the point.
It's not the supernatural aspects that I have issue with. The other supernatural aspects were fairly well done, the dragons were not.
The problem is inconsistency and and the absurdities behind the mundane aspects and how they were combined with the supernatural ones. Everything from the speed of the dragons, to them hovering, to the quantity and apparent impact force of their gouts of fire, to the arbitrary protection (or lack thereof) provided by their scales, to people being able to ride them bareback while they repeatedly go from 200kph to 0 or pull negative 4g dives...each case of laziness in depicting them erroded my suspension of disbelief until it became one of the most cringe worthy aspects of the entire show. It could easily have been done so much better, while depicting the same events, using the same screen time, with the same animation budget. It's like it was directed and animated by someone who never had their own body to interact with the physical world an thus had no grasp of how things should look in a universe that follows even vaguely similar natural laws.
GoT depiction of dragons wouldn't pass muster in most of the D&D games I've run or played in; even the ones where everyone has a talking sword, a personal army of zombies, casts lightning bolts from their arses, has been raised from the dead twenty times, and regularly commutes across dimensions.