IIRC the two shows parodied in the first two episodes are the Dick Van Dyke Show and Bewitched. Both were in heavy syndication in the 70s when I was a kid (I was born in 1970). And, frankly, the parodies didn’t work for me at all. I’m certainly open to parody. I thought the Brady Bunch Movie did a great job of lampooning a show from that era. And it just didn’t feel like there was much more to it than that. It seemed to hint at a larger story, but not enough to give me the patience to suffer the parodies.That may be a good point, and I have read about other people who gave up on the show, it all seems to be after episode 2. I do find it interesting because the first two episodes are short, so they're not exactly a big time investment, but (with the trailers) they seem to establish a pattern and both episodes are pretty strictly committed to the gimmick. I can see how many might have seen that more impenetrable than inviting. Again, not trying to command anyone to like or even watch a thing they don't care for.
I'm in my mid 30s, so born in the mid 80s, a little older than Wanda the character. I'm familiar with a lot of the prior decades' shows through reruns that aired when I was a kid. Nostalgia is a part of the theme of the show and my personal nostalgia may account for some of my positive reaction to it.