Arguably, the best school in SV does not seem to ban technology. See https://www.harker.org/technology
The use of technology and tools will always be challenging. For instance, should students be encouraged to master a TI-89 in class or prohibited to use on the SAT? Is it a helpful tool or an abject crutch? Does technology hinder or help the development of critical thinking and reasoning?
In the end, everything reverts to the presence of competent educators, but that is where the US education is hopelessly lacking. The secret hope of many teachers is that parents and technology can continue to mask their ineptitude in teaching. The results of testing simply confirm that the antidote to poor teaching is none other than dumbing down the entire exercise.