From what I have heard of this lady, who has had this park for many years. I highly doubt that these Koalas were Malnurished or Dehydrated.
Why has the RSPCA removed a native species, which come under the control of National Parks?
I doubt any RSPCA officers have experience enough to gauge the quality of the Koalas in question.
I think this may be a personal vedetta with the RSPCA officer involved, especially as he was said to be very rude to volunteers.