So... you are a bunch of writers who decided to have big ships for no other reason but to have big ships. Sounds exactly like what everyone has been telling you.
The fact is you have been defensive the entire time about this. If you can't take criticism of your 14 km ship or the universe you like to play in, then don't bring it up. It was you who brought up causually like it was normal to have in a RPG to have 14 km ships.
Sorry, but it isn't. Ever since the start of internet when people could post their designs of their ships, there has always been a craze of trying to do a one-up on someone else or something else. Even a totally original universe has that because ultimately there is no logical reason to have such large ships unless something is preventing them to have smaller ships.
You have yet to explain anything. So why quit trying to explain when you haven't explained anything beyond "I wanted a 14km ship". Because to everyone here that is exactly what it sounds like. You haven't told anyone here WHY the ships are so large.
I mean it's one thing if your ships were unique in being that big to fit within a role and a mission. Generation ship for example. But you are saying there are even larger ships that makes your look tiny in comparison.
Sorry, but you seriously need to look up the definition of fanwank.