Even if Dvorkovich wanted to restart the tournament now, the players have either returned home, or are on their way home. As soon as they arrive home, they will have to start the 14 days of self-isolation, so they can not just return back to the Russia. They would be stopped at immigration and turned back as it would be clear they have not served the 14 days self-isolation.

And still further more, the Russia air flight ban is still in effect.