I think the clarifications on what is physical were pretty clear. The information in a ledger isn't physical. The information stored in data isn't physical. It's information. Information isn't physical no matter what medium you choose to store it in.
I have to agree with you. If I take an empty hard drive and fill it with information, clearly it's information content has increased but its physical weight would be the same. You could argue that it contained 0s or 0xffs to begin with but since they are all the same the quantity of information is less. So information itself does not have a weight but it exists in the state of physical objects which do have weight.
