The humans make their gods for their needs, depending on knowledge and social structures, and nobody needs nothing. Shar promises however "nothing", the big darkness. As she is an important goddess, for me she feels as a very much misunderstood mixture of the devil and Buddha.
Realistically, she's more a personification of alcohol.
She's all about the "Wanting to forget" and is primarily sought out by those who've suffered pain or loss. Not unlike how in real life people will turn to alcohol for the same reasons.
Essentially, she's the patron of despair and depression. Those people who feel they've hit rock bottom will find her comforting. To people who only have pain and suffering, "Nothing" is preferable.
So yeah, she will be difficult to understand for those who haven't experienced true despair.
In Star Wars blaster "beams" thankfully travel so slowly that you can deflect them, oh yeah. I would have given Jedis a kind of energy shield, for the shot to the back, but who cares.
To be fair, much of this comes down to how "The Force" is used to cover all the plotholes in Star Wars...
Blasters aren't supposed to be slow, it's supposed to be that Force users are superhumanly fast and can react to them (But that's hard to portray on film outside something like The Matrix's iconic bullet dodging scene)
Similar deal for back shots... Force users are supposed to be able to sense incoming attacks and due to the aforementioned superhuman speed, react to them.
As well as stuff like anything actually protective being bad because it cuts them off from the force, which is why Jedi run around in bath robes instead of something actually practical. (Of course, why Stormtroopers don't have anything is as questionable as their weapons training...)
