If I can offer any comfort my Dd was in the first cohort to find themselves with inconsistently deflated GCSE results. It came as a surprise and many walked out of local schools in tears on results day, having not got the grades predicted / needed to get into sixth forms. A number of my DDs cohort at school predicted an A in English got a B (their English results were deflated by 40%). Most private sixth forms require an A to do the A level. Within 24 hours it had become clear what had happened and sixth forms were relaxing their requirements. It was also thought any hope of studying English at a good university was ended with less than A.
At AS level in spite of terrible panic attacks my DD cleared 4As with a very high mark in English, she applied to study English in combined honours for 5 universities, 4 in the top 10 in the league tables for English and got 5 offers, something that would not have happened without a string of A*s in previous years. The unis clearly knew exactly what had happened and disregarded that B, and the same was true of other pupils who had similarly had disappointing results.
I don't know how the unis are going to respond to not having the additional evidence from AS but what they want is the brightest applicants who will succeed on the courses and the credibility of GCSE results as a predictor of that has been undermined.
I really feel for any pupils who are a victim of all this meddling, but the unis do not live in a vacuum.
Bottlecap firstly, you maintained that it was untrue to say a bright pupil with average scores which would still represent a significant disability would not get extra time. It is true isn't it? And it translates into a lot of pupils who have lost their extra time or will not get it, who will as OFQUAL concedes have the playing fields tipped against them. And all I suspect because some policy bod thought it would sound bad to Daily Mail readers if those getting extra time had scores that could be termed "average", restricting it to "below average" is a nice simple message, no need to complicate it with the complexity of reality of how different pupils with different issues and levels of ability are affected 
Secondly I can only pass on the advice of an Ed Psych, Dyslexia charity and school exam officer that without those below average working memory and processing scores extensive evidence has to be submitted for special consideration and they are finding the chances of success uncertain.