I think that's off. Idk what he means by better athlete, maybe Barnett being bigger means his athleticism is more impressive? But in terms of standalone athleticism I'd say Landry is better, Barnett had good hands coming out, and I also would say landrys first step is scarier than barnetts who relies on timing a bit more.
Really I couldn't compare the two other than to say Barnett is flat out better. He's bigger and stronger, better pass rusher, better instincts and more refined, better run defender, an elite dip and bend the likes of which I haven't seen since I started following the draft, I just didn't see that with Landry last year when I watched him heavily, I saw a pretty good bend and a bursty guy who could buy himself enough room to shorten the edge with quickness. Barnett was a different animal, far more complete and pro ready.