Anything that can further the mutual understanding in culture, art and science between peoples is a good thing. It is our duty to do anything to ensure the peace.
People seem to prefer to advertise their moral rightfulness even at the risk at dooming humanity. After all, everyone who doesn't agree must be a Putin-loving traitor.
Putin's Russia might be a fact of live for many years still to come and we will need to live with them. I know people wish otherwise but that is not how the world works.