Are tanks susceptible to simple counter measures?

Combined arms doctrine does not have armor operating without infantry support and air cover as well that would suppress one's ability to get 'close enough' to the tracked vehicles for that kind of disabling action. That's where a stand-off weapon like the Javelin makes the tread-heads sweat. That being said, from what I've seen on the news, the Russian army does not seem to be executing combined arms tactics very well. One lesson learned from the conflict is that Putin has pulled back the curtain on his armed forces' readiness and training effectiveness. Though the Russian Bear may have a large force and lots of equipment, but they are not as effective as once thought. This conflict is going to provide a cornucopia of case studies for the U.S. Army's Command and General Staff College and the Army War College for decades. It is interesting to note that in 2007 when I was starting CGSC, much of our studies for notional planning and 'fictional' strategies revolved around the Georgia/Azerbaijan region of the world. And then it happened but the U.S. was not directly involved. Have you ever noticed who was in the Oval Office when Russia has embarked on any of its territorial acquisitions?

It's like castrating a tiger, theoretically possible, but the difficulty is getting close enough...