I feel for the creators of this very funny series because what reading these poor reviews has taught me is that the vast majority of the population obviously does not recognize or understand a parody when they see it.
There are multiple people here pointing out that the different messages on the daughter's gravestone are "mistakes" of the creators etc. or that the lines were childish and badly written, or the plot was unbelievable etc. I am actually at the point where I hope that some of these people are doing a satirical review in order to point out the absurdity of those who do not understand. Please be the case, otherwise I am sad for the status of our world.
I thought this show was a clever take on the average "girl in the ..." thriller novel/movie that seem to be everywhere these days. Often those novels/movies are a bit far fetched and the over-the-top storyline of this show did well to point that out. As always Kristen Bell is spot on!