I agree with you on the quality of the study. My point was that value shouldn’t be considered a given, we’re still figuring it out.
In my team I see examples like yours, but I also see engineers having to clean up slop when one of them got over their skis.
My _belief_ is that it’s a net positive, but we’re far from taking that as a hand wave fact. And it certainly ain’t the 5-10x people are shouting across the board.