Nobody is going to freeze - even before war Russia was at most about 30% of gas imports; now it’s much less (https://www.bloomberg.com/news/articles/2022-09-27/europe-is...), and those two pipelines were unused anyway. The only risk is the raising gas prices will make the industry less competitive over the winter - but it’s small fries compared to COVID.

What it does is fixing a major strategic problem of Germany being blackmailed by Russia - a problem which endangered entire Europe. It also makes it impossible for Russia to route gas around Ukraine - which differently to EU countries could then freeze.