Probably because it's become painfully clear just how poorly prepared the Russian armed forces are for this, or any, modern conflict. Their equipment is old and badly maintained, their personnel are ill-trained and have low morale, and their intelligence appears to be of the "tell the egomaniac dictator what he wants to hear" variety rather than the "get the best information, no matter what it may imply about relative strengths or whatever" variety.
Putin tried for months to secure Ukraine and is being pushed back. He's instituted a draft to replace lost personnel there, and over a hundred thousand able-bodied Russians have fled the country rather than take the risk that they're called up.
I wouldn't put the odds at zero (because Putin is also not the most stable and sensible person), but it seems very unlikely that he would even try to send troops to open up a completely new front, against actual NATO members, let alone succeed in any meaningful way.
Putin tried for months to secure Ukraine and is being pushed back. He's instituted a draft to replace lost personnel there, and over a hundred thousand able-bodied Russians have fled the country rather than take the risk that they're called up.
I wouldn't put the odds at zero (because Putin is also not the most stable and sensible person), but it seems very unlikely that he would even try to send troops to open up a completely new front, against actual NATO members, let alone succeed in any meaningful way.