The feeling I got from Mr Byrne yesterday was they will be suggesting she floated down the creek and came to land in the spot she was found. The time lapse video was to show the amount of debris washed up and down that particular section of the creek hence how the plant matter could have been entwined in her hair.
Because we don't actually know where her body started from ( assuming it floated to its final resting place ) we don't know whether all those plants were available in the creek area to become entwined - does that make sense ?
I'm way behind, so what I want to say might have been said already. Sorry if that's the case.
I'm sure that it has been stated either in the bail hearing documents or by one of the medical experts that was a witness of defence, that either she died where she was found or she was dumped there fairly shortly after her death, i.e. within a few hours after her death.
As the rain set in just a few days before she was found and not at the time of her disappearance, I very much doubt that there is any chance that her body has floated down the creek within that very short time frame just after she died.