What did occur, on occasion, was that the cost of foreign capital rose, mainly in the form of a decline in the foreign currency price of Australian assets - ie a fall in the exchange rate. Were concern about the current account position to emerge at some point in the future, a similar result might be expected.
Having said that, no one can know if such an adjustment will occur, let alone when. But if it did occur, the experience of the past decade suggests we would be able to cope. We have absorbed substantial exchange rate movements, without the economy being derailed.