His points are salient, and he does highlight much of what is wrong with the curriculum.
Sadly, the politicians making our curriculum and designing our system haven't the faintest idea of how to do this adequately. And, to be fair, it is an enormous and extremely difficult undertaking.
When their creations fail, we see a lot of finger-pointing and blaming. But then we have to ask, if they won't, then who will come up with the solutions? James Lu certainly hasn't, and nor have I (Don't count this site, this site is a band-aid-effect to the current system) and, it seems, nor have most who have complained. Or anyone! Anybody could look at the VCE system and tell you that it's mired in controversial and ineffective teaching/assessment methods.
I'm yet to see the proposal of a better system. If you look overseas, some of these problems and other entirely different ones spring up all across the developed world.
No system will be perfect, and we won't near perfection for a very long time. I believe this letter serves a great purpose in once again bringing to the fore the dangers of being complacent with our current system. However, from here, we should consider solutions. I think the best way of doing this is opening up the debate to more people. Perhaps we need a real thinktank on this consisting of students, education researchers, teachers and politicians etc. to thrash out a better system.
Let's hope people start making the connection between this letter which highlights the problem, and now springing into action to effect positive change. That is the real problem, here. There is no shortage of complaints. No real intelligence is required to realise that our system favours the socio-economically advantaged and the mathematically able. Anyone can tell you that the VCE system, when executed at its worst, can stifle creativity and the intellectual thought process. But I ask, who will have the intellectual brilliance to invent the solution?