Read this recently GCSEs
My first thoughts are these are different exam systems (?) so surely comparing apples with pears?
Having said that, a letter appeared a day or so later from the guardian of an Vietnamese girl studying in the UK. She allegedly found the children in Vietnam were so far ahead academically compared to those in the UK that the girl would have to drop back a year if she returned to Vietnam. I suspect this is about a different system being in place and suspect it would always have been the case rather than UK standards suddenly declining.
Should we be concerned?