Sig, I feel like I wrote that post myself. I agree exactly, strongly, one hundred percent with every word, which is shocking!

I can't write much, you described it all perfectly. I logged on here to talk about how some things, especially the Custodian, were actually broken and were counterintuitive with the flow of the fleet. If you are listened to, the kororvesh will be a perfect fleet. Not korvattra level, but damn fine and balanced.
Give the damn Custodian cruiser status or 90* at 15cm. Its stupid not to. (But the prow deflector is a good first step) 
Biggest issue. If nothing else changes, this must, as its a fat pelican in a fleet of sparrows.20 points and 4+ armor on the Warden is a neat idea, it certainly needs something. It additionally makes the hook Emissary versions underpowered because they bring an overpriced ship at the cost of no lances. It would be fine at 25 points and be just an ever-so-slight Orca improvement.
25cm is a big duh, and 'why not?' on the Emissary. It aint getting emissaries around in a hurry as it is. Deflector option is neat, good idea.
2 fighters on the main variant, or what Sig suggested. I think it was 2 torps and a bay.
Protector is overpriced.
45 and 20cm on Castellan.
Perfect fleet, dream fleet.