It absolutely matters. Not only should the responsible party be held responsible, but it's indicative of the larger picture: the USA is more involved in the proxy war than they're letting on. They're killing peace talks, they're blowing up infrastructure as seen here, they had plans for Ukraine years ago that have started to come to fruition.

The only reason the USA isn't a first-party to this war is because there isn't deployment of USA troops directly in battle. There is still every other signifier of war participation: increased gathering and sharing of intelligence, shifting of money and allocation to the war effort, increased propaganda to shore up popular support, international negotiations to gather support from allies, use of USA's arms directly in battle, training soldiers (of other countries) for the war effort. Literally the only thing missing is USA soldiers on the front line.

Your comment reads as: "Russia is on the hook for something bad so who cares that the USA did something bad", which is nonsense.

Good thing the Western media has been so trustworthy when it comes to this issue. Nine months ago, it was The Official Truth that Putler blew up his own pipelines for no reason because he's the hecking Jonckler, and anyone who questioned that narrative was labelled a pro-Kremlin tankie troll. Now, oops, maybe the US or Ukraine had something to do with it after all!

NATOpedia is also one to talk when it comes to what news sources are considered "propaganda", since they think CIA propaganda outlets are reliable enough sources to use in their articles.

edit: lol, instinctive downvote even though everything I said was true.