One of my children is a Division I athlete and unfortunately was injured. That is when the nuances of a medical redshirt was explained to us. First, we were told there is no such thing as a medical redshirt. There is a Hardship Wavier under Article 14 of NCAA Division I Manual.
Whoever in the thread said that the athlete's participation in the sport must be 30% or less is correct with the condition that in some sports it is three contests or 30% whichever is greater.
In the last year of their career the athlete and the institution apply for a "Hardship Waiver" to obtain another year of eligibility. (Article 14.2.4 of the NCAA Division I Manual)
So, if Morgan indeed played thirty percent or less of the schedule this year then she is eligible to apply for a Hardship Waiver in the final year of her career. Nothing is done now other than be sure the proper documentation is there to be used to support the request for Hardship Waiver when they make that request.