Hello Daisuke.
First of all welcome to SLO I believe I haven't seen your introduction yet ^^;
As for your point: SLO is currently in a pre-alpha state, meaning that the core movement mechanics and combat mechanics are tested by players to get a sense on what they can expect in the near future. I can understand your point, but as of right now, the developers are trying to complete the basics first, then move on to 'filling' up the game. (You need a good dough first for a good pie.)
As of right now the developers are very busy trying to create more jutsu's and more ways for players to maneuver themselves around the battlefield. (i.e. wall walking, <insert EARTHDOMEHYPE.exe here>), as well as other mechanics (aim-mode).
Do keep in mind that again, this game is far from complete. Nevertheless, the graphics they -have- implemented show that they aim for a realistic sense (not anime) and the mechanics, though incomplete, show realism and a lot of options for players.
The developers have a life of their own as well and are doing this in their spare time basically, so the game doesn't get updated often. However, we should be expecting an update soon-ish.
Aside that, (correct me if I'm wrong) but the team isn't very large either so time-wise AND resource-wise, development -will- be slow, but worth the wait (
trust me).
They tend to tease our community though with pictures/gifs/movies of what they've created in the forum's chatbox, so keep an eye on that

(Example:
latest tease).
Hope I've informed you plentifully.
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