What i also notice in a lot of 3rd person and first person games on PS3, is the auto aim function, IE move the analogue stick close to the target press button A to auto aim to the target then press button B to fire. If i look at the last game i have played on both PC and PS3 that would be farcry 3 . Now that has an auto aim feature, that i needed on the ps3 version, but was playable with a mouse on the PC version when disabled . Disabling on the PS3 version made 20 AI homing in way to hard and frustrating .
Could indeed be a serious problem if the controller is not accurate enough. I'm playing 'modern combat 4' on the nexus 7 (2013 version), I've disabled auto aim and this works great. But this is offcourse against other tablet gamers... I would not like to play like this against mouse and keyboard players. Hope Valve keeps this in mind.