Johnny Weir mentioned during Nationals that Gracie just needed to "burn the house to the ground and re-build". I know I've been saved from a funk from just making a change. Sometimes it doesn't matter if it was the best possible change, just changing things helps. I think that makes the Alex vs Marina argument moot to a point. (And, IMO, Frank seemed to be thinking along those lines too. Just my impression that he's veteran enough as a coach to recognize that kind of thing.)
As far as SOI, maybe she was told to do jumps she knew she could land for awhile just to build confidence (rather than falling on jump after jump and just feeling more down on herself). Plus, I read in a thread here somewhere that she was doing a new fitness class, so she is working on her cardio. Maybe it is best to work one thing at a time. Again, I'm NOT a coach or anything other than a fan. But, I know from other activities that I've had to learn and the step back to re-learn, you start small. So, this would make sense to me.
Or possibly I just want to see her make a good come back