Bright Eyes - S1-E7
Trivia: Trask refers to Mr. Sinister's Sentinel attack on Genosha as a "mutant massacre." In the comics, there is a storyline called "Mutant Massacre," which saw Sinister tasking a group of mutants called the Marauders to kill the Morlocks. Years later, it was revealed that Gambit was hired to help sneak the Marauders into the Morlock tunnels, making him culpable in the act. This is contrary to Gambit helping to save some Morlocks from the Sentinel attack in this show.
Answer: You're not missing anything. The original film was almost 50 years ago. The modern-day filmmakers just changed plot details to suit the prequel story and create the character and backstory of Damien's birth mother. This is not unusual for a film franchise or relaunch. It's different directors, writers, and producers who have a different vision or change things to fit a different time.
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