Earlier quoted context omitted.
This is a non-statement. NATO is 29 other countries besides the US, all with their own motives, and you can contrive of motives for every other global power with the means to blow up a pipeline; the "opportunity" part of it doesn't even make sense.
You find it plausible that a global power outside of NATO would commit an act of international terrorism like this, blowing up the critical industrial infrastructure of a NATO member and everyone would just let it slide? Or that any one of 29 NATO member countries would do this acting all on their own?
Plausible? It has happened many times. In 2014, Russian military intelligence operatives blew up ammo depots in Czech Republic and nothing happened. Ammo stored there was to be sold to Ukraine. https://en.wikipedia.org/wiki/2014_Vrb%C4%9Btice_ammunition_...