Failure or Deferred success?

I came across an article recently in a newspaper. It talked about a British University which conducted a research on 'Failure' in London and other parts of England. Thousands of primary and high school teachers were called in to take part in the survey. Most of the teachers opined that the word 'Failure' should be omitted from the dictionary as they felt that the word itself seems to be detrimental to many students' success. And, they asked the Oxford to replace it with 'Deferred success'. What is the difference anyhow?