It has always been like this
There is nothing new in this, and I can't see how technology is going to help. My son goes to a large faceless comp and we have a lot of difficulty finding out what he does, plus at least some of the staff seem to be completely unaware of known problems he has. The school don't even have phones in the classrooms and notes still get left in boxes for the teachers by reception, and quite often don't get read because getting them involves a 15 minute walk from the classroom back to reception. How about some 1980's tech that actually works?
"Becta wheeled out child psychologist Professor Tanya Byron to comment on how communication between parents, kids and schools could be improved with the use of technology."
So you never have to actually talk to a human being. In which the tactless email can be sent "by accident" and make things even worse? In what way would that be better?