Listen to what he is saying, that's the problem.
"what is the reason for a strategic reserve" you can have a reserve of anything. Is it public consensus, is it beneficial or is it just some lobby trying to shill?
Central bankers need to be methodical, reserved and prudent. You can have a strategic reserve of anything, corn, wheat, oil, coal, apples, beef etc. There's both a value attributable and a yield.
BTC sitting in a wallet doing fuck all isn't the same as any other strategic reserve. And no, Gold isn't 'sitting around' either.
If the public consensus and policy is to have a reserve of X, then it is with the central banks authority to research and create options to make that happen. That is what he is saying.