The fact is no one apart from the OGs can actually arguably tell exactly how much bitcoins Satoshi mined and map out exactly all his wallets except it was Satoshi himself or he had direct contact with Satoshi back in the day. There are actually countless reasons why satoshi left many things untold.
Even OGs can no tell exactly how much he have, no one can because if there was a way to tell we would already know because media speaks openly and the funds he have in his public account are already told to us they are more than 1 million BTC and the wallet can be seen.
You are right there can be many things why satoshi went dark but I don't think now he should be in dark what you say.
You may be right but the question is what are the odds? The perfect scheme for the concept of bitcoin having a decentralized network was for Satoshi to remain unknown by the general public.
Really! I mean I have been into crypto for almost 4 years I think and I never take this factor as a decentralization root for BTC network, the network will still be decentralized even if Satoshi come to a TV show, it's the network, the public, the code not the satoshi name or himself, but we must have another pov on this too as you mentioned.