If i lived in the SW universe i would make it my life´s mission to produce an accurate hand weapon as well as an anti-ship anti-armor weapon that didn't involve missing the target 90% of the time.
I think the problem we perceive with SW tech is that we inevitably compare it to our current level of technology, and when today we are in the brink of nano-machines, anti-matter, mutiverses and whatnot, as well as practical deadly and highly accurate intelligent weapons systems... SW ends up looking a somewhat backward place.