In questions like this, there should be some demonstration of attempts to avoid human errors. Here we have a massive attack on the whole territory, including regions at the border. We can wait for next actions from Russia - if they'd bring apologies and some good offers - but meantime it's a good idea to keep reaction going. After all, it's the approach proven to be most reliable when dealing with current Russia.
If I told you that a surgeon made two fatal mistakes, you can't conclude from that information whether or not he's made a lot, a little, or an average number of attempts to avoid human error in his work.
No matter how much technology advances, warfare still involves incompetent idiots making choices under pressure based on partial and incorrect information. Sometimes those choices go wrong in a catastrophic way.
Given the state of the Russian armed forces, it's not entirely surprising their missile accuracy is in the tens of miles.