I like to add a little substance to things, so i'm going to piggy back off your post and add a little snippit from the ESPN article after the Browns game that highlights what you said in your first sentence.
"Dak Prescott had his first 500-yard game, throwing for 502 yards and four touchdowns while becoming the first NFL quarterback with at least 450 yards passing in three straight games.
Prescott set that record because the Cowboys (1-3) have played from way behind three straight weeks, in part because of turnovers by him. He five the past two games."
You're right that turnovers hurt us, but helped Dak rack up a lot of yards.