So you have every bounty hunter or conflict zone player flying a Viper or a Cobra for the rest of his life since all future ships are too costly to maintain. Eliminating all possible progression (after upgrading to A gear) in the game.
If you dont think that that is bad game design then im afraid you dont know much about how to make games and how to keep players playing them.
I'm no game designer, I do -not- need to know how to make games. This game has progression, to an extent. To - an - extent. This has no end-game. And yes, if your alleged "progression" ends with you sitting in a Cobra, that being the best for your job, then that's it. Period.