Has anyone seen Mulholland Drive? A coincidental
Pietro recast that looks like Fox Peterbut doesn't actually mean anything but to play on audience perceptions is such David Lynch thing.
WandaVision is a Lynchian TV show that borrows from Twin Peaks and Mulholland Drive. People shouldn't be disappointed if it turns out to be "nothing". Because it isn't.
The scene below, one of the greatest in cinema history imo, is an example. Dreams, reality, the fuzzy line dividing them, and our own role as audiences are on display.
Not only does the character struggle to come to terms with the unreality of his existence, but we come to terms with our role in it and it's role in us. The fourth wall break here isn't to yank a character from
x-men as a reality check for Wanda (and us) but to yank a character from his dreams
("I see him through the walls. He's the one who's doing it." Doing what, exactly? Is that man the director? Is he us?) as a reality check that he isn't actually real; that he's part of a movie (that's my own interpretation; others are available).
Now, I don't think people's fears that
Peter won't be explained are founded. The show will almost certainly give an explanation (and it'll probably be weak and contrived). But if they didn't, it's not a sign of weak storytelling. There's a thematic and subtextual reason even if it doesn't serve the plot.