Earlier quoted context omitted.
Also, framing it as if Germany policy had not been also ... "influenced" by Russia's long-term strategy would be quite naive.
I think it's a mistake to see that as one sided. Bringing Russia closer to Europe and (according to the now falsified theory) creating conditions for peace while also getting cheap energy has been a goal of plenty of European elites.
It's not falsified. It may have improved conditions for peace; the situation could have been far worse now. Real-world issues don't work out neatly; they are extremely complex; you never know what the alternative outcome would have been.
As an analogy, eating healthy food and getting exercise isn't 'falsified' as health recommendations when someone happens to die young.