Russia attacked directly after Ukraine removed their nonalignment leadership. I'm not saying Ukraine changed its constitution before the attack, just that the 2010 law was evidently possible to reverse.

Even if Russia didn't attack, Ukraine would've gone back to NATO alignment just as they were doing pre 2010. Maybe even more seeing how the entire point of the 2014 revolution was to push away from agreements with Russia, and the protest leaders were all loudly pro-NATO politicians. How could this possibly have led to nonalignment, aside from "this is a Russian talking point"?