I overlooked the 'his eyes took perma damage' from Arima bit. Nice catch.
Overall i think it's been appropriate. Kaneki so far has been a snowball rolling through his frosty life, picking up traits from everyone he touches. His mom, Jason, Arima and Eto basically made him who is right now. For better or for worse.
Also i noticed that his Kagune had an eye, if that's any indicator of him having a complete (or at least a more complete) Kakuja form then I'm psyched for the future.