Are you sure that these are the advantages of decentralized platforms?

 - Transactions on centralized platforms are faster because they update the databases, while it is done on the mainnet network for decentralized platforms, so they are slower.
 - Some decentralized platforms require the intervention of intermediaries, whether it is a smart contract or human intervention.
 - Fees are one of the problems that limit the use of decentralized platforms, they are too high and over centralized.

Liquidity is another problem and therefore for many aspects central platforms are better.