Why would teachers (except perhaps ICT specialists) be told this stuff?
You've got to remember that IT is about 10%, if that, of their actual teaching provision and even then it's a case of "it should work". They don't care who provides it, how much it costs (unless they are paying from their own budget) or what will and won't run until the day they walk in and find it doesn't, won't or can't work.
Add to that they have the plethora of new government initiatives being thrown at them on how standing on your left frontal lobe while singing the British National Anthem in C minor has been shown to increase concentration, and the like.
Bottom line, to 99% of teachers IT is an arcane art form ruled by wizards and trolls (depending on whether it's working or not ;)) and they just don't have the time or rather the inclination to care or worry about the future. Thus, when it all does finally come in, they'll scream ruddy murder for about a week (if that) and then add it to the long list of other gripes and problems they have.
To be completely honest seeing the other half job hunting and noting the number of head teacher and SMT positions being advertised I think the biggest problem is going to be a total lack of leadership. IT is really not going to be their priority.