Palpatine returned through clones and Sith magic, explained at the end of the story
The character Poe Dameron knows nothing about Force magic, which is why he says “somehow.” He is working from limited information and is not an “author voice” to the audience.
Therapist: Start with a story
Disney: No
Therapist: Then how did Palpatine return?
Disney: …Somehow!
Palpatine returned through clones and Sith magic, explained at the end of the story
The character Poe Dameron knows nothing about Force magic, which is why he says “somehow.” He is working from limited information and is not an “author voice” to the audience.
To be fair, the comic they lifted the idea from showed it in greater detail.