I’ve heard she wrecked it and it got worse, yes. The fear she put into people’s heads made had a lasting impact.
In America, it can be traced to a dubious report “A Nation at Risk”, 1983 which supposedly declared there was a crisis in education. And the same crisis-in-education has been repeated year after year by new politicians, each instituting radical changes to “go back to reading writing ‘rithmatic”. in some way shape or form, all in unreasonable fear of some kind of relativism when it’s really they that bring the problems upon themselves.