I think, Because of its attractiveness and abstraction. The value of the NFT is always on alert and therefore quick liquidity will be an important vertical factor. NFT is a ready-made work so ICO is not suitable for that, instead even new projects related to NFT launch on IDO.
Finished projects like NFT are certainly very different from raw projects that still require fundraising through an ICO or IDO, so the NFT concept always has to be separated from projects that don't have the same concept as them, and the attractiveness of NFT at this time is clearly visible still big, but for next year I'm still not sure about NFT.