Continuing the discussion, it’s because:
1 The worst of them are rigged.
2 Most juries are dominated by teachers who reward precision above passion and cannot recognise personality.
3 The all-shall-have-prizes rule prevails. Juries are too scared to declare that no-one deserves a cheque.
What needs to be done? Competitions must:
1 Try different repertoire.
2 Diversify the juries.
3 Subject contestants to public interview in addition to their performance.