I'm actually addressing to the first Healing chapter, the problem with it is that it takes pride over ego, in the sense that prioritizes the pride that RD might present over her place of origin rather than addressing her own ego satisfaction that leads her loyalty, one of the main problems is that it presents her as a traitor by pride, rather than a traitor by ego, in canon (as far as I understand) she decides to save Cloudsdale because is the source of her ego (taking in count the Sonic Rainboom events), as such she betrays her friends in order to save Cloudsdale, following this logic we find that the most traumatic thing she can experience is the betrayal that she executes over her friends, rather than the devastating events over Cloudsdale (I know that the chapter addresses both, but it takes Cloudsdale as the basis for the trauma, which I think is incorrect considering canon).
One of my biggest gripes with that chapter is how Cloudsdale is portrayed, and the fact that is used as a traumatic event, rather than the escape from the reality that Dischord created (the canon way, as far as I understand).
Don't get me wrong the chapter shows a real big deal that RD must affront, but it doesn't correspond quite as it should, the reason for this is Trixie; as I mentioned a while back, Trixie is very similar to Rainbow Dash in the sense that both seek the attention and appreciation of the people around them, the problem with writing both is that both will fall over the same points, because their personalities are actually similar (if not the same), writing RD over the basis of loyalty by her pride gives some space for Trixie's egocentric behaviour to show, but taking such away or partially from RD takes some of her character, and that is something that cant be done, given the circumstances in which these characters are portrayed.