Possibly. Trump is the most spiteful person ever. On the other hand, maybe Moscow isn't abiding by the agreement? Or maybe its both. You never know with Donny.
Some insiders have said Trump knows he lost the election but is sabotaging the transition the best he can in order to enact revenge on the Democrats for impeaching him.
The object of the agreement is to protect European security. Regardless of what Russia is doing, European countries have come out against Trump cancelling it.