I agree with that, but it's not just that. I did a regular space AX CZ a few days ago, been a while but was a good reminder of why I (personally) dislike them. Ammo. Repair is a very close second due to the time it takes, (and that's not aided by the swarm) but Ammo doesn't last long enough (in my experience) to complete a zone without synthesizing more, which eats into materials which just adds more grind without the gameplay I actually want to enjoy. A space port AX CZ is almost as much fun for me, even with the swarm because it takes a short period of time to dock, repair and rearm.
This is also compounded by the ease port based combat provides in offering engineering materials via missions. It's not really about the credits. It's easier access to materials via hours of gameplay in an exciting manner, rather than doing some relog farming activity just to give me a couple of hours of ax gameplay. I could get missions elsewhere, yes, but that's yet another time sink (albeit not a large one). I just want to get in my car and drive, you know?
A port based AX CZ offers a great location for extended AX combat play, along with a big finale of the Hydra's, it can last hours, it's great fun, with or without other players and provides quick easy access to materials.
Honestly, going off-topic a little, I'd like to see human CZ's provide port based combat that lasts for hours rather than 5-10 minutes of combat, then go repair and re-arm somewhere and start it all over again. Instead of a Hydra, have a capital ship jump in as the big finale (I've personally never seen a capital ship jump into a CZ, but admit I don't do much human space combat). If that's part of PP2 somehow, that would interest me in PP2.