I really liked the size and feel of the Capellan forces except for the WarShips where it was truly let down. At the same time I kinda understand it.
Me personally I'd have probably had 3-4 designs per faction because of the era. It would have at least brought the Capellans closer to a couple of the other nations which already have quite a few designs floating around.
The Biggest problem to date for the Capellans is they've lacked the back-up from the products the Dui Shi Wang was the only real WarShip that they had with a big "Capellan go faster this one is ours" sticker on it.
The Lyrans have already had a few
Davion has more than a few
Draconis Combine's a little light on homegrown talent if memory serves (Samarkand... Samarkand II...
)
as is the Free Worlds League (Atreus)
Bigger problem for the developers is you have the Taurians who already have 3 or 4 of their own designs and they are a Periphery nation!!
Now biggest easy way to explain this is some of the Succession States were lazy instead of developing their own designs they concentrated on other areas - advanced line regiments - LAMs etc and bought Star League Navy cast offs. While the Taurians who wouldn't have access to such stores went out and built their own knowing they couldn't match their enemies on the ground so they went into space.
The Federated Suns have a big developed navy because of their neighbours the Taurians having one. And the Lyrans have their developed navy because of the Rim Worlds Republic. Both act as nice counters and buffer states for the Star League so their ship numbers are overlooked and probably well supported (Aegis in both their fleets)
Unfortunately you have sourcebooks both old and new that state that WarShip fleets were pretty huge and really common until the Succession Wars which killed them all (a personal gripe but it's also one from the Jihad so I'm not winning there - I don't mind them dying its the not being replaced bit I don't like)
I guess there has to be a balance. You as a developer produce something that will grab attention (Field Reports) to the wide audience and bolt a couple of WarShips on the back while slimming down the WarShip fleets (and taking a bit of flak) while making a couple of pennies.
or
You produce something with 10 WarShips in it that few people care about and it doesn't make enough money to cover itself.
Given the two I can understand why they went with option one - annoying as it is.