"Captured" can mean many things. For example the gold price is captured because the "spot" gold price has nothing to do with spot, it is a paper gold price and is the nearest month derivative price. If you can print unlimited fiat to sell short unlimited (often naked) derivatives then you have captured the price. You can spoof volumes and costs by using off chain trades that may or may not be settled on chain later. Wall st is a spoofing machine and a fractioning of assets(reserves) machine. Its practically all they do.
Which is why I am no fan of ETFs and other financial products based on bitcoin. But they will always exist so we need to get used to that.