Yes, Satoshi will be very happy because bitcoin still maintain being decentralized, just that people are the ones that like to use the centralized platforms for it.
He will be happy certainly because Bitcoin is a success story. Otherwise he would definitely apply few some updates to fix some issues.
Well these issues are debatable, mining is one of them since it is centralised as hell. Basically few companies if we can call them, are dominating the sector and doing whatever they want there.
The other issue that the OP mentioned is hard to fix honestly. It is in our genes..