It seems to me that the key point is that if a NATO member is attacked, then other NATO members are authorized to respond.
So who got attacked? Well, Ukraine was invaded by Russia.
And someone blew up Russia’s pipeline.
Help me out here ... I’m not spotting the NATO member who was attacked. Why is anyone talking about Article V?
The pipeline terminates in Germany. It carries a vital supply to the German economy. If it can be proven this was a result of Russian action then Art 5 can be invoked. If it can be deyermined that this was a result of US action then we have committed an act of war against Russia and Germany. Crazy huhh? FYI Google the plot of the 1982 ABC miniseries World War3. Similarities abound..