Yes, and there is a link to the explanation of "supplement permissions" on that page. With CC licenses you can't restrict terms of the licence but can only give more permissions. So I had to choose a non-commercial licence, then give permission to use the sprites for commercial projects with the condition of that said projects can't be anything blockchain-related. So in short, you are free to use the sprites in commercial projects but the project can't be a p2e game, nft project, web3 thing, or future inventions in the blockchain technologies etc. I hope that clears things.
But if you still have doubts, here are some commercial games that use my sprites:
Let me know if you have any other questions!