Let's keep the ball bouncing....a simultaneous "slump" with limited run production over a 10 game period by 10 or more lineup batters is uncommon. No multirun scoring innings over 9+ games is uncommon. It also speaks to the fact that to achieve that, it means that NO ONE hit a homerun with a man or men on base. That is the only fact common to this version of the RS.
I do think that when the rest of the lineup sees Devers failing to pick them up, they try too hard to hit the 6 run HR with no one on , thereby failing to extend innings and move the line. I also think Casas has a long way to go as a player, but time is on his side.
If Story returns during July as a DH initially , then Casas will have to sit in favor of Turner at 1B for his bat. Or Turner will be heavily shopped at the deadline ( more likely)