Viglen do consult with UK Educational bodies. The Omnino III itself was chosen as it fits the requirements best, you can see the same model wearing different manufacturers badges elsewhere on the web.
EU standards for computing classrooms where exams take place specify a minimum of 1 metre between the centre of neighboring PCs. The wider screens fit OK in our classrooms, yours must be really cramped. I wonder how your users have room to operate the mouse?
Incidentally, if you upgrade to the larger of the two screen sizes, it costs about £150. Viglen send over an engineer who fits a new faceplate to the existing screen, which has a narrower black border. It's still the same screen!