I mean it both is and isn’t. It does help small countries fun being steamrolled by the bigger ones, so it was easier to get countries to join knowing that they would not be overruled by Germany, France and Britain. The assumption was that you would have rational actors in place that wanted to do good for their people. It’s been working well, mostly.

But also yeah, it’s frustrating to see one it two bad actors mess things up.

Individual countries can still act though, it just won’t be an EU coordinated thing.

It was, back at the time.
Now maybe it is time to have some more complex system where some decision need unanimity, some a qualified majority (2/3 for example) and some just a simple majority with clearly written rules about what need what majority.