I agree with KRYPTON INC., some of the sitcom material is very ominous in a Twin Peaks/David Lynch kind of way. There's something very off about this whole world. Something off, dark, and sinister. And what's also scary is that some of it seems to be coming from Wanda herself.
I don't know about anyone else, but I'm detecting a very underlying feeling of dread for all this. Either that, or I feel a great sense of dread from what's happening. And my gut tells me that Wanda is willfully a part of it. Like I don't think all of this that's happening is her doing, but she is at least partially going along with it and wasn't completely forced into it.
Keep in mind, valid reasoning or not, she and her brother volunteered to be guinea pigs for HYDRA. And even if it was out of a sense of revenge for their past trauma, HYDRA is still a Nazi organization. Wanda might be a good person at heart, but she has a dark side. She always has, and we've seen what happens when her anger is pushed. I feel like Wanda wants to keep living this beautiful dream and she doesn't want to wake up from it. When she sees elements trying to invade, she tries to block them out.
Some of the show also reminds me of Twin Peaks. Not overtly, but just how in Twin Peaks David Lynch was symbolically showing the darker side of smalltown American suburbia. Sort of exposing its facade and showing the creepy crawlers and dark seedy nature underneath at all.
Also, when it looks like the facade of Wanda's idealized TV show life starts to break down, it gives me this creeped out feeling.