We can't say that holdings of Satoshi hasn't hit the market. Till date we don't know exactly the holdings that belongs to Satoshi. With some data a wallet is termed to be his own wallet. Upon the same we can't conclude he hasn't got any other wallets. There is more chances for the bitcoin to hit the market than being idle in a wallet.
Actually there's some good research into Satoshi's mining activities. It's very compelling and the coins haven't moved.
I highly believe that the public doesnt even know the entire number of wallet possession of satoshi. There are a few numbers shown
but we can see that the coins werent moved yet as of now.We dont know if those wallets are already lost or just being reserved to be spent
by its owner.
Also,i dont see why people are really eager to know if those coins will move or not yet the founder/owner do had the full rights on how he
gonna spend up his money but somehow seeing those coins moved does shows or prove out that satoshi is just watching his own creation and
the entire crypto community.