I don't think that actually, but rather he tried to prioritize Kana being corrupted, instead of the NTR aspect. His NTR experience he has being majorly emphasized in Netorase, which is also hindering his ability to write Netorare. You can see that in his previous H games with NTR as well. I do hope his fans encourage him to write more dialog in general and to consider reusing the H game system he has here to help expand on it, as it is a very good H game, just missed out on excellence from the very few short-comings.