Why is the eastern australian forest considered temperate?

I've always had a problem with WWF's "temperate broadleaf forests" categorisation for the forests in southeastern Australia as they're surrounded by places well within the subtropical zone. But come to think of it, it's a complicated and mixed case as some are definitely temperate -- The majority of the forests in the southeast coast (and I mean those near Sydney) lie on the Great Dividing Range, meaning they're more elevated and naturally have rather cool winters (10C highs, 3C lows... check out the climate data for Katoomba, Wollemi, Mount Boyce), in addition to brief "crummers" (23C highs, 13C lows). To me that is not subtropical. Maybe only vegetation-wise they are subtropical? As I read that the southernmost place in Australia that supports subtropical vegetation is Narooma in NSW south coast.



Btw, forests in low-lying areas in Sydney are definitely subtropical.