R* just decided to do IV like that, what's problem there. Sometimes, they do dark game like III, then colorful like VC, SA, then back to darker IV, and now out of place, game with no feel, wrong path called GTA V. You see? Things changes...
GTA V doesn't know whether to be dark or colourful.
It doesn't know whether to be dark, or colorful.
It doesn't know whether to be arcady, or realistic.
It doesn't know whether to be slow-paced, or over-the-top actions.
It doesn't know which character to focus on. Trevor and Franklin felt like auxiliary protagonists.
So much for a game with identity crisis.