They dealt with the error-related backlog but there is always some reporting delay so the daily number has never reflected the number of positive samples taken on one particular day.
But yeah as I said yesterday, Saturdays number was actually somewhat indicative of what the new normal really was at that time, and it was only Sundays over 20,000 number that was distorted so massively by the error-correction catchup.
I guess I will repeat my colour-coding exercise in this thread again but with a fresh graph for UK positive tests by specimen date. Blue is everything reported up to and including yesterdays data release, green is where the positive tests reported today fit into the picture by specimen date.
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If we attempt a vague mental exercise of imagining how additional data will add to this picture, it is possible to imagine that even by specimen date there will soon be days showing up that hit 14,000 or more by specimen date. I might therefore tentatively conclude that the daily reported number has probably returned to being a reasonable proxy for how many positive tests by specimen date there really were around that day.