The easiest rationalization is that Travis’ inclusion may’ve been a bit awkward, narratively talking. If Travis was included within the hallucination, would he be the grownup Travis who died initially of the collection, or teen Travis? From Natalie’s perspective, grownup Travis makes probably the most sense. Natalie’s had an ongoing relationship with Travis post-rescue (one thing she hasn’t had with Lottie), and it has been grownup Travis’ circumstances she’s been most frightened about. The downside is that viewers have by no means actually cared about grownup Travis, to the purpose the place it seemingly would’ve taken us a second or two to even acknowledge him.
If the present did determine to incorporate Travis within the aircraft hallucination, it will’ve probably been teen Travis. Would which have labored? Maybe, however it will’ve taken the main focus away from Javi and Lottie, the characters Natalie’s storyline has revolved round probably the most within the final two episodes. There’s additionally the difficulty that Travis is not a constantly comforting determine to Natalie. Javi has at all times been good to her and Lottie’s at all times tried to be supportive, however Travis has gone via a number of durations of sullen, closed-off conduct. There are three seasons to go and much more heartbreak to return, so perhaps Travis and Natalie’s relationship takes some even darker turns from right here.
Most importantly, nonetheless, is that with Javi lifeless in each timelines, his relationship with Natalie is at an finish. Meanwhile, Travis and Natalie are nonetheless an important a part of the teenager timeline, a storyline the writers nonetheless need us to care about going ahead. It may make sense for grownup Natalie to say goodbye to Travis in her remaining moments, however for the present itself, this could be a untimely farewell. The two’s fates could also be sealed, however their tales are nonetheless removed from over.