At the very bottom, in the "Dishonorable Mention" section of the year-end post:

[My] real-objection is to the ending, which can be reasonably interpreted as saying that the hero and his sister committed suicide, after which they got to be together in the afterlife. The very last thing Japan needs is a TV show that glamorizes and justifies teen suicide.

It is true that similar themes are common in serious Japanese literature, and if you were writing a serious tragedy something like this might be acceptable. However to do it in a sleazy fanservice show is unforgivable.

From what I heard, Jonathan's concern is reasonable. In particular, over one supper Ana-sempai told me about the toy rabbit. But I think he cheapened the argument by railing against sex before getting to the issue, in the paragraph that I skipped.

UPDATE: Jonathan replied.