And other than losing money, what would be the consequences of Gazprom pulling out of Germany completely? I’m guessing that Russia just doesn’t have enough economic leverage to do so.
Russia decided to use the gas as a weapon and germany decided to use its financial structure (I.e. its ties to many other countries) as a weapon back. In the medium and long term I think Russia needs germany more than the other way around.
More broadly: your business is in trouble if it only has a small number of customers or suppliers. That diversity provides resilience. In geopolitical terms, it’s it’s fine to have only overseas suppliers (and even good from a comparative advantage perspective) as long as they aren’t correlated. Germany’s bet (wrong) was that making an oversized commitment on Russia would provide a welcome guarantee to reduce the chance of isolationism, That didn’t work. But Russia made the opposite bet: that the commitment meant they had a stranglehold on Germany. But Germany is too rich and has too many friends for that to be any more than a transient threat.
I think we live in a dangerously intertwined world, and a bit of email redundancy in each country would be quite important.