He is the youngest ever to play in U16 league and youngest to score points there. And he doesn't have any physical advantage. He is small but because of his excellent skating he has had a chance to play on a higher level and play against guys over three years his age.
I count that as exceptional.
I've actually seen him play. Yes indeed, he is very impressive, his forward stride on the skates is explosive, has a good shot, very slick hands, and is in general waaaay too dominating for playing in his own age group (06). But to be fair, he is physically a lot bigger than the average of his own aged kids, he is also otherwise physically very early matured (way into puberty already, looks like 14-15), and on top of that, obviously he is well trained and he is in excellent physical condition. Honestly to me it looks like he is an extreme case of "my dad wanted me to be a hockey player". I don't know him or his father, but it just seems like that from the outside. If he really wants it himself, remains to be seen, I hope so.
All in all, he is probably worth most of the hype he is getting. The question is, does all of that still carry him at the point when he and all his age-mates are past puberty? Is his skillset actually THAT great that it still works against the best (eventually)?
Time will tell. Best of luck to him, and to the fan-choir, hold your horses, he is still a child anyway, and now in a very vulnerable age. Too much too soon can be extremely damaging for a career that young. And seriously, like someone pointed on the first page, be careful with the Mathias Emilio Pettersen -effect. I mean if Kiviharju will ever play a game of professional hockey in the Finnish elite league, that's great. If he gets drafted, even better. He ever sets his foot on the NHL-ice even just for one game, fantastic. Extremely few extremely talented players in the world ever achieve that. If he makes it all the way to Norris, hey, good for him.
It would just be a shame if he ends up having a great hockey career, even 101% of what was humanly possible with his genes, and still be considered a "disappointment" or "lost talent" or even a "failure" by the public.
And since we're in the 2024 -thread, I can say with confidence that there is a lot of potential heading that way in various countries. Depending on their puberty, some will surface quicker than others, some will fade, that is a fact that will not change. Personally I'm following with great interest at least 10-20 players who should be on the list on the first page, but are not. I will not discuss their names, ever, since I don't think it's fair (I also don't blame those who do). If they will make it, they will be known when it really matters, and that is springtime 2024, earliest. Some might take even 4-6 longer to mature to NHL-level.
Until then, let's play some hockey.