Looking at your other posts, on your maintenance fund and on your cladding inspection, I think your strata manager may be over-servicing the scheme, trusting that the BMC will support his appointment because the minority stakeholders get a lot of benefit for very little outlay.
I think you should get your committee to agree to an audit of your services by an independent expert, including a review of contracts and the circumstances under which they were made. There’s a company called Strata Answers who provide this kind of service (for a fee, of course).
But it sounds to me that you are being baffled with BS from people who may well be feathering their own nests at your residential owners’ expense.