I get that, but I think it is a bit silly that the fate of the entire galaxy revolves around one family- the original trilogy was about characters fitting into a larger story in a more realistic way- the prequels basically turned Vader into space Jesus which is where things went a bit wonky, IMO.
I also think it limits the stories they are able to tell if they feel the need to connect everything back to one family.
I'd love to see independent stories within the Star Wars universe that don't require the writers to make crazy connections to other characters.
I get the reason, though. People like what they know.
A totally original and awesome sci fi/fantasy/comedy will make less money than a slapped together piece of [Mark May] Gostbusters (or any other established franchise) remake because yay! I recognize that branding!
Star Wars without the iconic characters is probably scary as hell for studio executives.