Yes, but that's not what FOARP or Cybvep or Alex said. No one in this thread mentioned both at the same time: IC requires IC to rebuild, and diminishing returns on bombing. FOARP only said that the death spiral was present in AoD and still playable.
I can't be sure FOARP wants to include the diminishing returns based on his statement in this thread. The fact that he even calls it a death spiral makes me wonder if he thinks the diminishing returns is a good idea, since the diminishing returns aspect makes it not quite the death spiral others make it out to be. Perhaps he was being ironic, but if that's true, then we are just not communicating well.
And if you think balancing strategic bombing isn't a big deal, then I'm not sure what to say. I think it's a really big deal, because I'm not entirely sure I've seen ANY model of strategic bombing that accurately represents both what happened and what was realistically possible in the actual war. That's also including the fact that I'm not sure there is consensus on just how effective certain kinds of strategic bombing actually was. Hell, bombing Japan in 1945 with B-29s was an entirely different game than bombing Germany with Lancasters in 1943.
I'm not just making things up; I've seen plenty of complaints in the HOI3 forum about strategic bombing being too effective. (Or, in some cases, not complaints. Just observations that it is far more effective in the game than it was historically.) Just saying "AOD did it better" without making it fully clear why it was better doesn't help the discussion. And just because I am not sure I agree with AOD's implementation of strategic bombing, it doesn't mean that I am attacking AOD or seeking to bring it into disrepute.