This site may have a small number of general UK technicians from companies etc but I bet it's a very high percentage of school / educational technicians on these forums.
There response: This is a forum where people go when they have problems. You are only seeing so many bad comments from people because this is a place to go to when issues arise. We will not be participating on this forum and we believe this website make up a small number of the technicians in the UK. Majority of the schools do well with Apple devices and the iPad is a brilliant educational tool, this represents a small minority of people that are having issues.