Depends on story and characters.Well, I doubt that DS9 would as fondly remembered if they were isolated to just that Station and Bajor and never ever went anywhere else.
I can image several stories that could be made to work with just those two locations. It's also a rather unreasonable statement that, in the age of tech that DS9 is in, that they "won't go anywhere" or have things come to them.
That's an interesting supposition that isn't support by facts. At least, none of the interviews or BTS information that I have read, or as @Prax noted, reports by the actors themselves.This was probably a symptom of how they just had bad luck with their Centrals and couldn't even get THEM to all get along. Beltran and Wang being the biggest offenders. If they had some excuse to split the crew up so they weren't all on Voyager the way DS9 was able to with its cast, they'd have more wiggle room because the difficult actors wouldn't be thinking "Why give that extra focus that should be mine?"
Also, regardless of any divas on staff, Alan Alda was a bigger one. It comes down to writers willing to craft stories that make sense in the world. Which, honestly, a lot of Star Trek productions have struggled to do, so I won't lay this completely on VOY.
It perhaps is a larger symptom of how the production staff views Star Trek as a whole.