It's no mystery. The US regime changed to one sympathetic to Russia (at the very least), so the ever-supplicating political establishment has started realigning. Remember this is the same paper that helped drum up support for the Iraq War. Even "leftist" corpo media is still just blue-flavored
state media.
As far as the truth, the problem is the lack of two functioning political parties. Two parties representing different approaches to the US's interests would have meant that the opposition poking holes in the official narratives would point to a competing US-benefiting alternative. Imagine instead of this feckless trickle of weapons effectively keeping the Ukrainians on a leash, the US could have taken the lesson from the Moskva and let Ukraine run with it. That is the debate we should have had.