Yes the damage to the ceiling would be covered by the Strata insurance
BUT carpets are not covered by the building insurance and so for these you would have to claim on your contents insurance.
HOWEVER as the carpets were damaged due to the roof leaking (which is Strata reasponsibility) their is a grey area I’m not too sure about.
If the water had damaged the fitted kitchen for instance the strata insurance would have covered that, because it is covered by the strata policy.