Exactly - the alternative would be that students were doing worse or exactly the same despite having the huge benefits from new technology, teaching methods, re

Exactly - the alternative would be that students were doing worse or exactly the same despite having the huge benefits from new technology, teaching methods, resources etc. That would be far more concerning. As a personal example - KhanAcademy launched the year before I went to University and helped me a lot as it meant I could be fully confident of my calculus and linear algebra skills (we studied these topics in Further Maths but not multivariate calculus etc.)