I mean, it can both be true that it wasn't terrorism, and that the mainstream media was wrong by blaming everything on russian superterrorist masterminds. We both know that media narratives don't have to be fully cromulent.
I personally don't care whether it was or wasn't terrorism. Either way, you and I are never going to know (barring a Russian whistleblower). I was just commenting on the bizarre and coordinated behavior of the U.S. media.