All that but I have yet to get what the foundation spends 155 MILLION dollars on - each year. Even with your arguments that number seems to be wildly inflated.
Also, the Wikimedia Foundation explicitly asks for funding for Wikipedia. As far as I know, no one asked the Wikimedia Foundation to perform anything past that. This seems to be comparable to Mozilla‘s situation, who try to grow past Firefox with ideas nobody asks for but they lose sight of what their main product.
50% of money goes towards staffing. WF just overhired and pays ludicrous exec salaries, so now they must pay the price.