I believe the stark realization over here in the EU is, that strategic dependencies we created either towards the East (Russia, e.g. gas) or the West (the US, e.g. defence), are making us too vulnerable.
What a pity what happened to these pipelines for Russian gas.
I mean, the west will not be buying Russian gas anytime soon anyway, Putin knows that.
But what if such accident happened to some another pipeline? For example, the one that is being open just this week from Norway to Poland. The one that should help EU survive the winter.