I honestly don't think it was because someone needs to say it at this point. The whole friggin world is so afraid of making this crackpot mad they have basically given him carte blanche since he took power. (oh those sanctions and threats through the years really showed him huh!) Someone needs to be a leader and say what needs to be said. Note he didn't advocate for NATO to change the regime, he is talking to the people in the region who are being put under his thumb.
Look you don't stop a bully by tiptoeing around him...you stop him by getting in his face and forcing him to blink. That is what The Ukraine is showing every day and it is time that we (and by that I mean the rest of the world) stop pretending wearing pins and changing our Facebook profile picture to a Ukrainian Flag is enough. We can't fight their war but we can sure as hell tell them how to fix the problem. Putin is the problem, and as long as he controls Mother Russia he will always be the problem. The Russians (and the Chechnyans and the Ukrainians...etc.) are the ones that need to put an end to his reign once and for all and honestly I am glad Biden said it and hate the clarification after the fact.
We have already taken every half measure we can (for fucks sake we are talking about a limited No Fly Zone which is like being a little pregnant) along with the harshest sanctions possible. Time for The West to start telling it like it is.