To note:
The default rules (by-laws) for Victoria, have never banned animals/pets. My guess is that well over 90% of stratas in Victoria use the default rules or incorporate them. That’s at least for the past 16 years.
The Victorian default rules (by-laws) are:
(4) If the owners corporation has resolved that an animal is a danger or is causing a nuisance to the common property, it must give reasonable notice of this resolution to the owner or occupier who is keeping the animal.
(5) An owner or occupier of a lot who is keeping an animal that is the subject of a notice under subrule (4) must remove that animal.
(6) Subrules (4) and (5) do not apply to an animal that assists a person with an impairment or disability.
While I realise that pets then can be an issue for an OC or an occupier to deal with if they become a danger or a nuisance, so far the sky hasn’t fallen.