Curate, connect, and discover
X-Men TAS: Courage
While I really appreciate that they tried a “Morph comes back episode,” probably to quiet any fans like me going, “Where’s Morph? It’s been like, 2 seasons!” it’s weird to me that Morph’s big issue to deal with is “Fear of Sentinels,” not “Dissociative Identity Disorder, guilt and self-loathing over their actions towards their team-mates, and the lingering trauma of the long-term physical and psychological abuse inflicted by Sinister.”
It’s pretty understandable that Morph would now have a fear response to giant robots that literally killed them, which their shape-shifter powers aren’t super effective against, but everything that Sinister did was so much worse, and probably inflicted significantly more damage. I’m just going to assume that most of Morph’s time on Muir Island was dealing with all that, whereas the PTSD from their death wasn’t as obvious until they actually encountered Sentinels in the field again.
Of course, the simpler, more obvious explanation is that “Morph gets over their fear of Sentinels” is much easier to write as a plot to a half-hour kids cartoon than “Morph deals with the absolute mess of fucked up shit that Sinister put them through.”