Unfortunately, I think this is the most practical take to take here. WMF is "only" doing what pretty much all other large NGOs do, only they are in a highly visible position where: a) they operate on the Internet and b) their volunteer userbase is extremely obsessed about cataloguing and editing data, so it naturally follows they'd also be interested in the financial data around the organisation itself.
This is not to say they shouldn't be held accountable, but I do wonder what's the percentages of large charities that are "much worse" in terms of "we exist mostly to pay pretty good salaries to people whose purpose is to fundraise so we can repeat the loop".