It would have failed regardless, the Republicans would have blocked it, they knew the numbers of votes they had and made sure enough voted a certain way (why did Colins always get to vote the other way? It was strategic to let her get votes it wasn't her decision in the least). Also as far as I know it wasn't even the vote for the impeachment just to bring it forward so it'd have been blocked later anyways.
I'm not against it but it's like tons of articles are trying to blame the Democrats when there's no way it could pass before the new Congress is seated. Of all things Republicans can do while in charge besides pass tax cuts for the rich is block whatever they don't like and spin it so it's their win.
Also what crappy democracy let's people stay in power for months after they lose an election?