I don't totally agree that it comes down to the teacher. I mean, yes, there's truth in this, but I also believe there are some trends that can be most related to the style or the competition ruleset, no matter the teachers' prefferences or knowledge. Other people here have said something about this, and I agree with them.
I have a strong impression that many people in this forum train in places that don't reflect the massive aspects of most dojangs. The sole fact that people here have chosen very well and carefully their dojang -- or run it that way -- make a difference.
So yes, I do think hand strikes and blocks are frequently negleted in general taekwondo training, despite the fact that there are great dojangs out there that have a much more balanced practice.
By the way, despite some things in common, I can also see great difference between boxing and taekwondo hand techniques. It begins with the fact that boxing techniques are mostly design to boxing ruleset and protective gear (gloves mainly). I believe taekwondo techniques were originally more suited to civillian self denfence, and this makes a big difference. I'm not comparing with sport taekwondo, which I believe follows different principles (e.g., I think in sport it's usually safe to sacrifice stability for speed an power generation, which is not a great option in self defense). For example, a gloved punch has different effect compared to a bare-handed punch, and this makes great difference in each system, I believe. Furthermore, in today's boxing there's no grappling techniques, wilst in taekwondo I believe it's a vital aspect of the art, so much that the pulling hand in punches, as I understand, can be used to hold the opponent's hand, or clothe, or whatever. Finally, when we go deeper into taekwondo hand techniques, be it blocks or more strict grappling techniques, they're still hand techniques, but have very little resemblance with boxing. But now I have a strong impression that this is dangerous terrain, where so things should make sense, but many times they just don't.
Anyway, I'm no expert in any of the subjects I talked about, so take it FWIW.
