Another thing that gets overlooked is that in the months prior to the explosion, Russia had cut off the gas and lied about the reasons why it was cut off twice. Europe kept asking them to send the gas Russia had agreed to send, and Russia kept making up false excuses for not sending it. And then the pipelines exploded, giving them an actual excuse.
The pipe that survived? It would need Germany to backtrack on sanctions to open it. Russia said the gas was ready to flow as soon as they did so.