Whether you love Fitzsimmons as a romance, hate Fitzsimmons as a romance, and don’t especially care about the Fitzsimmons romance, it was enormously satisfying to see Fitz and Simmons finally rewarded after a hellish handful of episodes.
Besides, now that Fitz is in the mix and Simmons is free and able to hear, the core group of characters stand a fighting chance of defeating the Kree.
Fitz and Simmons have been the brain trust of the series from the very first episode, and their combined intellect could be the variable that helps Coulson and Co. save everybody.
As somebody who does kind of love Fitzsimmons as a romance… well, it never ceases to amaze me that the adorable little science nerds from Season 1 have built a love story that literally spans space and time.