I feel very strongly that Satoshi was meant to disappear. I think it was the final piece to the puzzle that made Bitcoin truly decentralized. If he were to come back or to never have left, he would be placed at the center of Bitcoin's day to day drama and the world would expect him to solve all the setbacks and try to hold him accountable for any problems that occur.
There is a Chinese proverb that fits well in this topic. For the purpose of this conversation I'll change Buddha to Satoshi.
"If you meet Satoshi on the street, kill him"
I agree with you, we don't need Satoshi to be discovered because it will ruin what fully decentralized means. But still, so many silly people want Satoshi to be revealed or comeback. I think they don't really know what decentralized is and what they care is about the money brought by Bitcoin.
Imagine if we know real Satoshi and we know who are their circles, then people who hate Satoshi's circles will just hate Biitcoin and try to shut Bitcoin down. It could bring much bad impact to Bitcoin community more than we can expect though.
So just chill, it's pointless to know who real Satoshi Nakamoto is.