I completely understand what you're saying. That's why we're investing a lot in international documentation and new training method.
Unfortunately, like you said we haven't a big amount of international developers yet.
As for the document orientation I don't wanna be misunderstood, I was only trying to say that DO can be a little hard in the beginnings.
If it can help, we can try to schedule a remote support session toghether.
The video you're speaking about are good, but we're aiming to something a bit more interesting: remote training lessons in english - http://blog.progamma.com/en/training-it-will-be-easier-starting-in-september/ :)