For me it has only been a problem up to just recently. While making a campaign that focused more on the day-to-day function of systems, I found a distinct lack of small stations. That forced me to use the GTI Asteria for the main hub, which feels more like a military station than a trading hub. I also had to use the GTDS Goliath, which was created to be a defense station, as a corporate headquarters. Recently, however, a lot of small stations have been released, including the new modular station, so it's not as much of a problem. (And thanks BlackWolf for finishing the Constellation)
I know of at least these models that I can choose from and it should be more than enough for that need:
GTI Asteria
GTI Constellation
GVI Abydos
GTI Europa
GTDS Goliath
My other difficulty is with utility ships. Not Freighters but things like Survey ships, Small Transports, Civilian fighters, etc. A lot of these you can write around, but it can help with immersion. I've got the a Table-modified GTS Hygeia filling in for most of those roles already, but a small transport that is more heavily armored than the escape pod would be awesome.
TL;DR: It's not a big a deal as it has been.