This is the most recent I could fine. It is from after the Arizona game last year.
I don't like giving the QB W/L personally, but they chose to use that, so yeah. They did show the difference in TD/INT ratio when compared to bad teams vs good teams.
"Against the NFC East, he's 16-2. It's easily the worst division in the league. He's 14-20 against everybody else. Against the NFC East, he's a Pro Bowler, he's got a 109 quarterback rating. Against everybody else, he's a guy, not terrible, but a B/B+ guy. The last four seasons, against teams with winning records, he's 8-17. That's just .500 or better, and the TD-INT ratio is insane against bad teams (41-24 vs. teams over .500; 52-9 vs. teams under .500)."
"Is Kirk Cousins in a slump, or does he occasionally have really good Sundays, but against good teams, he just is what he is? That's where I am with Dak. Kirk Cousins is a B to B+ guy, Dak is a B to B+ guy. By the way, that's with good weapons, competent tight ends, star receivers, the No. 1 offensive line for some of those years, better-than-average running backs. Now they've got a good defense. So with four years of data, is it a slump, or is he just not a guy that can carry a team against good teams?"