It's not really "Undermining" at all. Schools pay IT staff to advise on IT issues and not just to blindly support whatever flashy wiz bang idea management may come up with. You can't just ignore them because they provide negative feedback. It's exactly that way of thinking that leads to massive overspending on poorly implemented projects.
You are quite right to pick up the degree of contempt for some of the previous posts in this thread where the implications are that IT support staff have the right to undermine strategic decisions.