"People are not much interested in learning in schools" is a gross overstatement and generalization. There are those who are very motivated, those who are not motivated at all and the majority who fall somewhere in between. I saw firsthand how even the least motivated students were engaged by one really good biology teacher. Everyone was interested when the teacher did his job well. On the other hand, with terrible teachers even the best students tended to zone out. I imagine this is the same everywhere in the world.
As for the needs of individual pupils, I couldn't agree more. When I first entered school I already knew how to read and add numbers together. I was not allowed to progress at my own pace, and subsequently got really, really bored twiddling my thumbs during those first few years.
I think this catering to the lowest common denominator and lack of individual care is something that the Finnish school system really suffers from. Sadly with all these articles out many observers seem to think the Finnish school system is infallible, and they're only aiming at replicating the success of Finnish schools instead of thinking how to do even better.