naji:
First, it would be really helpful if you actually play snooker before commenting on things like snooker players' aiming, fundamentals, ability to actually hit where they're aiming, etc. I say this, because it's obvious you've never played snooker, or if you have, you haven't studied it seriously. It's very easy to create hypotheses on things you "see" but haven't experienced, but until you have the experience, it's just that -- hypothesis.
Second, snooker players OBSESS over their fundamentals, and they OBSESS over hitting the ball exactly where they want -- most often centerball / center axis. This isn't like pool where a loosey-goosey stance where the body is angled over the cue, and there's a certain margin of error built-in to every shot via the much looser pockets, chiseled-face pockets, and closer distances. This isn't like pool where it's easy to implement "adjustments" (BandAids) for those "just in case I don't cut the ball enough / too much" instances. In snooker, you either hit the ball exactly where you intend -- and make the shot if your aim was correct -- or you don't and you miss.
As a reader exercise, I ask that you watch an entire snooker match from start to end. Not just "reel highlights" of Ronnie e.g. switching hands from shot to shot. I mean actual matches where you get to see the opening break, and the subsequent "come with it" shot from the other player (which is most often a nearly entire length of the table shot). Watch as the camera gets down in front of the player and behind the object ball, so that you can see how the player lines up (aligns him/herself to the cue), and how the cue is lined-up to the cue ball. Watch how the player feathers the cue (takes practice strokes), and then fires. Tell me if you see any variance in how the cue is delivered vs. the practice strokes. (You won't.)
Compare this to pool players, and sure (of course!), you can see variance -- especially in players who, e.g., line-up (and take practice strokes) low on the cue ball, but then "come up" on the delivery to hit the cue ball where they really intend to. You will never see this in snooker. Never. (I should qualify this by saying "at least in the semi-pro and pro ranks." Of course you may see this from a pool player trying to play snooker, but then that's an entirely different animal, and the potting abilities will show it, too.)
^^^This (especially the bolded part). If we're going to use forum posts and questions as an example, compare the sheer number of folks asking about fundamentals vs. "aiming," and you'll see the landslide favor in fundamentals. Questions about aiming in snooker do exist, yes, but they are a trickle compared to the torrent about fundamentals. Fundamentals are where all that accuracy is at -- being able to deliver the cue at your aim point. Not "where is the aim point," nor "how do I compensate and build-in a BandAid for my slop in my fundamentals."
-Sean