Does Warren Buffett understand digital signatures?
The technology is not important to the value.
One can look at the balance sheets for TransferWise, and without understanding a single thing about HTTP, web services, SWIFT, or any other detail one can quickly get a sense that it is a viable business whose revenues exceed its costs, and whose prices are competitive.
Same is true here. Warren Buffet is famously skilled at precisely this sort of thing. Unfortunately for Bitcoin, he doesn't see the value.