Her mentioning Froot being nothing but nice to her probably has a lot to do with the fact that KSon isn't someone she can bully easily, nor would KSon enable her more retarded behavior.
Froots popularity has been on a decline this past year. Not a major decline, mind you, but a decline nonetheless. Without Vei and Nyanners, especially the latter, to stoke and encourage her more spergy behavior, on top of the whole charity fiasco, she's had to keep her head down, and not in a fun way.
I wouldn't be surprised if this doc was one last effort to stay relevant before her contract expires. Not sure if it's just me, but most of the other girls have been streaming with Froot a lot less these past few months. Maybe it's now dawning on some of them how much of a drama whore Froot is.