Dude. So at the end, all you are saying is that critics are meaningless and then somehow making the assumption that the fan reception is negative. This is one huge leap of logic here.
Not all of these so called positive reviews were posted on launch day btw. Go to the reviews page and you can see the date they were published, some of them with score above 9 were posted weeks after launch. Do you think these critics also rushed through the game or even though they took their time, they only reviewed the first few chapters?
http://www.metacritic.com/game/playstation-4/final-fantasy-xv/critic-reviews
Just say it that you hate FFXV and stop trying to force the narrative that it is a bad game. It is GOOD game with flaws and there is nothing wrong with saying it is a good game. I am not blind to its criticism but I am always baffled when I hear 'fan reception' and it is mostly posts here on Neo GAF that are the most toxic. But this happens to every game here. The Last of Us and Uncharted 4 also get hate here and it doesn't mean the fan reception is negative to these games.