The pilots know what the limits are - both weather and aircraft - and the decision to fly should rightly be with them. Even in a unique and highly valued machine. If they pushed the limits, then I feel sure they will have conducted a full and frank de-brief and learnt all positive that is to be learnt.
Did others fly at the display? If yes, then presumably others also considered it to be fit. If no, then I am sure the crew will have taken note!