These two failures are too deliberate. First of all, if you stay away from the main plot of this season, you won't mention them. The essence of an ambush pen is to keep the audience's attention on the main plot and bury it quietly. In these two places, the intention of the screenwriter is too exposed.
In terms of foreshadowing, Dustin and Dada's lines are very representative. At first, Dada was the key point of the conflict as a quartet, but later, since Dada dug a hole from the storm shed and ran away, he has been disconnected. Somehow, when he went online at the last minute, he played a handful of "love nougat" and got a box lunch ... and Dada happened to appear in Dustin's trash can without any reasonable explanation, so this line was quite blunt from beginning to end. ...
Speaking of the newly joined brothers and sisters this season, they are really fascinated by the skill of the screenwriter. Look at the ambiguous and mysterious dialogue between brother and sister, and the nervousness of my brother. I always thought that the two brothers and sisters would have terrible backgrounds, but it turned out to be an ordinary reorganized family with a violent stepfather. ...