I'm not sure appeal panels will have given any thought to this yet, but in due course they will no doubt take it in their stride!
They are used to taking the academic evidence as it comes.
For example, they already have to cope with:
• no NC levels at all for some children who are home-schooled, or from independent schools, or from abroad.
• no CAT scores from some schools.
• no headteacher recommendations from some out county schools.
• inconsistent headteacher recommendations from in county schools.
• some parents provide school reports. Some don't.
• some parents provide an ed. psych report. Some don't.
• some parents provide school work. Some don't.
An appeal panel has to manage with whatever evidence is