Keeping Satoshi's identity a secret helps Bitcoin stay decentralized. Cause If we all knew who Satoshi was, it could change how people see Bitcoin and make it seem less like a community project. They might also face a lot of pressure from governments, which could put Bitcoin at risk. By focusing on the community and the technology, Bitcoin has been able to grow without being tied to one person
It’s the network that’s actually decentralized, Satoshi can suddenly wake up and turn it to a centralized system the network was built that way. But one thing satoshi hidden identity has been able to do is actually safeguard the price impact of bitcoin and possibly the manipulations accustomed with his actions. Take for instance the Altcoins which we have today, the action of their founders are usually what impacts the market or price action of the market. Imagine having Satoshi in a similar situation that CZ was found if his identity was actually revealed, it wouldn’t affect the decentralization nature of bitcoin but this blackish will affect the price because it will cause FUD around the market