Before you reply, take a look at this.
In a relationship, lets say you find that one girl, that one girl that makes you laugh, smile, and turns your world upside down. When you look at her all you see is her beauty despite flaws she may have, because true love is flawless.
Now lets say she has a little pudge around her thighs, is that really going to matter if she makes you happy and has you smiling non stop whenever your with her? For me the answer is no, I will lover her regardless, yes if she went to the gym it wouldn't hurt, but even if she didn't, I still love her.
GT5 to me is like that girl, yes there are a few things that are in GT5 that ideally could have been done better or might be fixed later. However I am so happy with GT5 when I am playing, that it doesn't really matter in the big picture.