When there is disagreement as to what is or is not essential maintenance, how can that be resolved?
Do a bit of work yourself, engaging professionals, and present the findings to the committee/SM/owners.
Speculation doesn’t help much. Professionalism does.
In my decades as an OC chair around Australia, I’ve had countless owners complain to me about “crucial” building issues. When professionally investigated, they were often found to be not so crucial.