The eye implants are mandatory because they explain why you have a HUD in combat. The HUD is supposed to be what V is actually seeing while in shootouts.From Yong video they say eye implant and subdermal grip are mandatory, i think that they already force to much cyberware on player , fine that jack in your hand is need and chip slot in your neck all have that, but why would i want subdermal grip if i plan to make melee build for example? or why to put cyber eyes if high tech goggles exist who can do same thing?
Cyberpsychosis would be nice part of the game for player, sure put more cyberware but you get more and more like a machine cold and emotionless, you get better bonuses but you get a lot of negative stuff and if you go to far, you lose your mind, also from Yong video when they talk about customization it sound like they throw away Cyberpsychosis so that player can switch to many parts of body for look and fun.
I'm not as sure why the sub-dermal grips are mandatory, but presumably there is a reason as well. I'm willing to wait-and-see at least, but then I also wasn't planning on a fully human V.