I'm throwing this out there in the hopes that it will generate discussion, and if I'm wrong about it, to learn something.
On maps like high noon, Aeon and Sera are able to put you under pressure from the get go. Masses of floating T1 spam can attack you from any angle and you are forced to (ineffectually) invest in PD and your own land units, which play no further part in the game. Sure, frigate spam is cheap but you can't outspam T1 land and the enemy units can retreat to land for safety, nullifying your frigate investment. Since that land will usually be your side of the map, the threat is not eliminated in the least, you might not have built frigates at all.
Yes, cybran have jesters which work well against paper T1 hovercrap, but you need air superiority for it to not be an expensive counter. And floating mobile AA makes it a non-proposition. UEF sit with a similar problem but at least their T2 PD is an effective counter and it doesn't suffer from the curse of fluffiness.
The situation is even worse with maps like CookieNoob's Assdistressa or whatever it's called. Winning your aquatic part of the map with frigate spam is once again expensive and its utility is limited since you can't use those frigates elsewhere. To defend against UEF T2 hovercrap, you have to have a tonne of PD, and destroyers are the only way to defend against incursions and still have that mass investment useful on the other side of the map. Even then it's quite easy to be outspammed and since the passage of water is narrow, your HQ shipyard is very vulnerable.
The Wagner is supposed to be the fluffy counterpart of floating T2, but while it is a counterpart, it isn't a counter. They are essentially immune to each other but at least the enemy has the advantage of being able to use torpedoes to defend. Cybran does not have that ability. While they are protected from land based defense, hovering engies are immune from their attacks and keeping a shipyard alive is a piece of cake.
There is a gaping hole in the Cybran lineup and while I'm not complaining about overall balance, they are at a big disadvantage on close-in maps where water is part of the strategic, ahem, landscape. Playing as Cybran on those maps is an exercise in tooth enamel preservation.
PS while I'm shamelessly making demands, can we have longer thread titles please? Thanks.