I think it's a fair question, but these are not great examples, IMO.
COD skins and Roblox bucks can only be produced and sold by one company, so I don't see why you would need a decentralized protocol for them. CS:GO doesn't use DeFi, and apparently the market was active enough to be used almost entirely for money laundering.
For other financial markets, I can definitely see more of a case to be made, but it remains to be seen whether that will actually take off. From what I've seen, the crypto markets right now are primarily dealing in crypto, as I said.
COD skins and Roblox bucks can only be produced and sold by one company, so I don't see why you would need a decentralized protocol for them. CS:GO doesn't use DeFi, and apparently the market was active enough to be used almost entirely for money laundering.
For other financial markets, I can definitely see more of a case to be made, but it remains to be seen whether that will actually take off. From what I've seen, the crypto markets right now are primarily dealing in crypto, as I said.