The entire post war international order was to make sure Germany does not engage in military power politics in general and France does not do it in Europe in particular. The EU functioned as designed and that’s good. WW2 is still too raw for anyone to accept German military power in Europe. It’s just not politically acceptable.
And the author completely underplayed the role of NATO. The deal has always been that American muscle will be funded by German money. The EU and NATO are not at odds with each other, they complement each other.
Also, bro should not drop a quote every other paragraph, it makes it annoying to read.