I largely agree with your assessment. Braves SPs xwOBA so far (not including Folty's start today):
Mike Foltynewicz 0.347
Kevin Gausman 0.319
Julio Teheran 0.318
Max Fried 0.304
Mike Soroka 0.278
That's a #2 stud who is likely on an innings limit, a solid #3 who will also likely be limited a bit, a couple #4s, and a guy everyone hopes is figuring it out after an injury scare.
DK will take a while to be MLB ready, so at that time some of this will probably have sorted itself out.