I don't imagine Pop ripped him or suggested he was trade bait, but I bet Pop said he needed more from LMA - especially more energy/hustle and more toughness/willingness to take it to the hole - especially against Harden et al. And, yes, I suspect Pop mentioned Harden's name in that interview.
Look, I (Master Mim) believe that Pop has been coddling the guy since his arrival. We all know that is definitely NOT Pop's way. That alone puts a strain on that relationship, with Pop, completely contrary to his nature, walking on eggs s and LMA, no doubt, realizing that he isn't getting treated like the rest of the guys. And the "psychoanalysis" response in Pop's presser spoke subliminal volumes about their relationship and how it wore on Pop. For crying out loud, Pop screamed at the GOAT until the veins popped out on his forehead, and here he was treating this GOAT-mockery with kid gloves. He knew it. We knew it. Everybody knew it - even LMA if he has any brains. I think Pop was getting seriously tired of the masquerade. If the Spurs were going to really improve, Pop had to develop a more authentic relationship with LMA. So behind closed doors I think he finally was very direct with LMA about needing him to live up to his billing, take Pop's coaching and give him some nasty. And I believe that pushed LMA over the edge. (Call me Master Mim.)