Spot on I think - most look bad because of neglect and not enough natural rainfall rather than it being too cold. Some of the better ones I’ve seen are out in the outer Eastern suburbs in the foothills of the Dandenongs where it gets pretty chilly but receives more rainfall than near the CBD or around Bayside suburbs. Same goes for Archontophoenix. I will say though, that Ravenea rivularis was susceptible to crown rot for me when young in Spring. It’s grown out of it now, but I suspected it didn’t like cold and wet conditions while it was still establishing. I planted in a cooler area of the garden in mostly shade intentionally based on what I’ve seen with specimens that dry out too much, but I think that’s the opposite risk when you go too shady and cold. The best one in Victoria I’ve seen is the one at Geelong Botanic Gardens. It gets morning sun but is well protected from all sides from wind and looks to stay quite moist in that area. There are a few mature specimens around Melbourne - this one down the street from my place looks pretty good. Doesn’t look like it gets extra attention but I assume the roots have tapped down deep now. The tree to its north must help with preventing it drying out too much too. I planted this one nearly 25 years ago. It’s the only survivor of about 5 originally planted in this garden. Soil is nearly pure beach sand and no irrigation. This is the result 🤣. And here’s an interesting planting - Singapore Botanic Gardens have them as aquatics. They like it in there in the tropical climate, but I’m certain it would be a death sentence in cooler climates.