There's maybe an argument to be made that using language which implies the legitimacy of organizations as presenting "all of us" is a sort of supremacist way to act, because it casually legitimizes whoever happens to be in power without questioning where they got that power or whether they earned or deserve it.

But, like, it's a standards body. If the world didn't have one it would want to go and make one and then be back where we started. This isn't the interesting battlefield for that kind of point.