True in parts and yet horribly wrong in others.
Disclaimer: I was a "gifted child" and yes, I was bored in school, so much that my parents sent me to a psychologist (who told them there's nothing wrong with me except that I'm bored) and then to special gifted-child after-school courses. I had my first chemistry course 5 years before I had it in school, and I had computer lessons and shortly after my own computer in 6th grade, at a time when computer stuff was an optional course in high school.
And yet, I don't blame school for ruining my chances. On the contrary, I believe school should be much like it used to, i.e. roll back the dumbing down you've done to it just because you want better PISA scores. Schools purpose is to create a baseline, a solid level of basic education that later on in life you can expect everyone to have. As such, it has to be so that everyone can acquire it. Some easily, some will struggle, but it is a (low) standard and exactly because of that it is useful.
What needs to change is the attitude that school covers everything. These days, not only have people largely stopped understanding that you can (*gasp*!) educate yourself out of school, in addition to whatever you get there, but you should also (*big gasp*!!) let the school do the teaching and keep things like teaching manners and basic social skills at home with the parents who desperately need to stop thinking they can outsource the raising of a child.
If more people understood school correctly as a standardized base-level, less people would send their kids to school and think that covers their parental responsibilities and aside from that it's just feeding and housing the brat.