I disagree. Where's the evidence showing that sort of doctrine works, especially in this context? Putin is very much playing the part of the ex-KGB thug that he is. This instance is a result of Russian nationalism in the region, coupled with the ouster of Yanukovich, which is a relatively random event. Putin has and will continue to try and expand Russian influence over its neighbors, regardless of nearly any level of military retaliation.
Any issues he will have are not going to come from military threat. They are going to come from the fact that Russia is still operating in a 20th century paradigm, which is susceptible to tight sanctions. Slamming the brakes on Russian trade would do far more damage than any number of missiles. That threat hasn't gone away.