That comment depends on your relationship points with Sage. Although it is easier to get the best scene in this episode on the DIK route, I was able to get it on my CHICK route too, because my 'Sage points', although lower, were high enough. I also got the 'I'm getting along very well with Sage.' comment on both routes.
Sage may be the only one of the 5 who responds better to the DIK route, but she is not completely precluded from the CHICK route, if you are not too stubborn with your CHICK choices.
Jill and Bella definitely respond better to CHICK choices, but the DIKs among us can do well too, again, if not too stubborn with our choices.