So what you're saying is one should "Curb their enthusiasm & temper their emotions".
What comes to Kontiola seizing a top-six spot in the Leafs, that's certainly not a completely unfounded prediction. But not something one should shout from the rooftops. Any European team, that would be as much of a guarantee as you can have in sports. But the NHL is the NHL.
Still, part of sports is predicting outcomes. And you could certainly make far more unlikely predictions than him turning out to be a player on this level as well. On big ice, he can certainly compete with all the best, and even beat most of them. He's proven that.
What comes to people debuffing him because of his contract, let's keep a couple of things in mind...
1) Even a million bucks is a whole lot of money, especially to a regular Joe on the street. If I had half that much sitting on my account, I sure as heck wouldn't know what to do with it all.
2) This guy has been one of the highest-profile KHLers in existence, meaning he's already had a bunch of lavish paydays. He can certainly afford the reduction if that translates to a best possible start in a whole new environment. Sometimes people just do economically insensible things in order to chase a dream. Though at this case we have to talk relatively, since even a million is still more than enough not just for your daily bread, but for the butter, cheese and salami on top of it.