> I'm just questioning the bundling with central bank money
In most countries excluding the US, EU, UK, and Canada, the Central Bank also sets financial regulations and provides the infra backbone for fintech, and in some cases still own commercial banks.
By having central banks attached to these projects, it helps build a testbed so private sector players can then extend on.
Most countries aren't like the US where private sector investors are open to investing in innovations, so it would fall to the Central Bank to begin testing and implementing these products.