Discovering Satoshi's identity could potentially be a problem for the crypto ecosystem because it would mean that, if alive, there is a person (or a group) owning a huge amount of bitcoins that could potentially kill its value even though it would be extremely stupid to sell such huge amount all together. For me one of the most important things about bitcoin is of course its decentralization, and knowing that someone still alive owns 1 mln coins would be a huge problem, I don't think I would trust the system anymore.
Satoshi had long disconnected himself to the cryptocurrency industry. The name is known because he created the first decentralized cryptocurrency but he was been missing in action for more than a decade. I do not think that he has that influence on the cryptocurrency anymore nor give any huge impact on the industry if he is identified.
Bitcoin had been developing without Satoshi and obviously, the community and developer won't be shaken if one day Satoshi is identified, it will be a huge news yes but the Bitcoin economy had been long moved without Satoshi so I don't see any huge impact if in the future, Satoshi is identified and arrested due to his shady activities ( if ever there is any).
In case Satoshi move his coins and sell it on the market, it would be a good thing because the sold BTC will be spread out to different hands making the economy stronger.