That would explain it. Hmm ... I think that end game bomber spam can be very powerful in many ways.
"I didn't bother to learn in-depth about this game, nor do I intend to. I cannot beat hard AI, nor do I intend to. I have not tried the PvP aspect, nor do I intend to. But I do intend to spread my ignorance around like a badge of honor, labeling all those who disagree with me as "trolls" and "morons". I will not provide any facts or evidence to back up my opinions, even though I am a begineer player who still needs to learn the game. I will engage in the most mind-boggling theorycrafting that would impress even the ASOIAF fans. And above all else, thou shall ignore opposing evidence and assertions."
No wonder this game was such a mess balance-wise in the first year, Starclad had to contend with these singleplayer AI players who have no idea how the game works. The last time I saw liberal use of bombers was before the PM nerf... nowadays they are strictly used as a surprise tactic or if you have SC superiority. Mass fighter is much more common and effective, although it tends to lead to boring battles of attrition.
As for Heavy Cruisers, my opinion closely resembles that of Seleuceia... Yes, they are very vulnerable to repulse and all those other special abilities but if you are an eco who needs a fleet up and quick there is no better option. Carriers take time to set up and their AM is gone the moment you jump 2-3 times from your factory. Even if you are a frontliner, they can be very effective if you disguise the production (although this isn't exclusive to HC). All your "buffs" to the HC are complete crackpot and will ruin the balance of this relatively balanced game... They're most vulnerable to abilities, not bombers... the only way to alleviate that is a slight increase in range... but why would we want that, when its not that big of a problem (or even a problem). And I find HCs to be fantastic titan killers once you get quite a few, especially if you get their debuffs/buffs (enforcer's is the best, tec is trash and will likely cause problems).
Don't believe me? Watch the skilled replays in that red ruby thread... You can see it live right there... And how sad that guys like Ryat and Seleuceia are feeding this guy's self-delusion... they know he's dead wrong but still carry on with the charade...