Well, I too have reservations about the Neroon. The armament and the carrier options are fine - what's lacking is the hull, crew, and traits.
It has fewer crew than a Sharlin, with barely more damage, but to top this off it has 66% and 50% thresholds, which really makes it suffer.
It is hull 5 (the only other Arma ship at hull 5 is the Vorlon HC?).
When Matt opened up for questions regarding the Neroon etc. on Sat, I asked about the thresholds on it and the Liati, and the answer was that they have so much advanced tech onboard, the ships are a bit flakey - I would accept this explanation /if/ the ships had lots of advanced tech, but improved neutron lasers have been around on the Sharkaan and Shantavi for years, and the other tech has also been on every other Minbo ship for years by the Crusade era.
What it could really do with to make it an effective contender is one or more of the following: +20 crew, and crew and damage thresholds to 70% (this is still weak for an Arma ship). Stealth 6+ (honestly, if EA R&D can come up with infinite range scouts, surely the Worker caste can make 6+ stealth). Adaptive armour (the Minbos have been building adaptive armour ships for the ISA, but not themselves?). Given that the Victory has Hull 6 100/100 with Adaptive armour, and even more advanced tech than the Neroon, I don't think it's too much of a stretch.