Magic played the Swifts in March at Tauranga's ASB Arena, going down 43-48.
A young, inexperienced Magic team, without ace shooter Jo Harten, put up quite a fight against the international-laden Swifts.
"There are possibly a few learnings to take from that and we gained a bit of confidence despite losing narrowly," Fitzgerald said.
"But round two is an awful long time ago. The Swifts have really run into some form since then. We have improved since then but in the last five or six weeks the Swifts have been quite dominating."
Fitzgerald is proud of the development of her young players, six of whom will still be under 21 next year.
"When you look at that game on Monday night, their composure under such pressure was pretty awesome. But I am also incredibly proud of the older players, in particular Grace [Rasmussen], Jo [Harten] and Leana [de Bruin], who have been out on court with them all year. The guidance and leadership they have given them has been pretty amazing as well."
The return of inspirational leader Casey Kopua after a serious knee injury was another telling factor in the Magic getting past the Mystics.