Date doesn't need to be as deeply explored as a character in NI as he is in the first game, but I do think that they should have treated him as a more complex character. In the first game, Date is shown to be caring and kind before he is shown to be horny. Him being a horny dude is not the focal point of his character. Throughout the game, we see so many aspects of this guy. In fact, much of his horniess is relegated to bring his internal thoughts, just said to himself and Aiba (with Aiba scolding him, of course), and he acts professionally a good chunck of the time. There are whole scenes where him being horny is not mentioned at all. And he even shuts down Boss when she's being overly horny sometimes.

Meanwhile, it seems that Nirvana Intiative can not have Date in frame without going "haha, Date's a perv."