You said it was fun, but then gave an example of why you quit in the first area because of how un-fun it was getting.
Which is it?
There are lots of games that have less than stellar parts, but a GOOD game makes you want to get through them so you can get to the rest. A bad game does things so wrong that you can't even ignore the bad stuff long enough to get back to having fun. Obviously this is my personal measure of good vs. bad, but it seems to me that if you stopped the game because it started to get annoying then how could you consider it so highly in your head?
I'm not sure how to put it. Those first 8 hours were just really good. The game was immersive. Atmospheric. Like a crappy African STALKER. The fire mechanics were cool. The map mechanic was cool. The shooting felt satisfying. The world was open, pretty, and felt alive, initially at least. Shooting an explosive crossbow at a caravan I'm ambushing was fun. I just love open world games.
It was fun for 8 hours, then I got a mission to drive to the other end of the world and I quit. I wouldn't call it GOTY, but I don't hate it. I think I paid $2.50 for it, so that might be influencing me a bit.
I could say the same for Skyrim, really. It was fun initially, the world is pretty, immersive, and exploring is fun. Then you realized the combat is dull, every dungeon looks the same, the world is lifeless. I played Skyrim for about 20 hours before getting sick of it, and I thoroughly enjoyed it. I certainly wouldn't call Skyrim a bad game, I just got bored of it.