It was an artful framing of the journo's questions...as to the substance Putin is both right and wrong...depending on your interpretation and Putin is smart enough to know this and plays the game well...
Is it stability to pull from those treaties? Well, the low-info type has no clue but by saying it doesn't promote stability leads them where he wants them to go...when in fact by staying in those treaties it locked the US into a competitive disadvantage which naturally Russia wants to continue exploiting without having to acknowledge it. And no matter ones opinion on Ukraine (nobody wins that, there is guilt all around and honest people will acknowledge that) but Putin is stable on his nations opinion of what happened. As always perspective is different from the winning and losing side in a proxy arena where both are guilty of dirty tricks, again it's "part of the game".
And where Putin has a clear advantage (apart from the obvious diminished mental state and national security compromising corrupt skeletons in his opponents closet) is a consistent message and being far ahead competitively in all aspects of "the game".
Trump by comparison was/is a far more astute leader...and if not for the bloodless coup here I think Putin would have taken those treaties off the table as a discussion point if Trump had been successful in extricating us from Asian hellholes and NATO. Under Puddinghead one way or another he'll have it all...