I realize what he is saying, mostly because there are races that slide into that pitfall --not adapting their ships-- and lose because of this. The Dregin, and Arceans, and sometimes the Torian or Korax will adapt their ships. But often the other races, like the Humans, and the Yor, and epecially the Thalans seem to fail in that area. This can be offset by other advances, it seems that the Thalans have a very quick planet grabbing effort, and if they fall behind early, they have lost, while the Humans make lots of friends, and if you pick on them, you quickly find yourself in a three front war. (Note: this was on tough) The Yor have yet to even remotely prove themselves, but maybe at a higher difficulty. All and all, I'd say each race AI has its own tweaks and perks. (did I say that right?) If one proves adequate, it might simply be the situation. I dont even place Humans in the game if there are not at least 4 other AIs playing, because they will not present a challange otherwise.
There are often times when the AI is amazingly superior for no apparent reason, this is usually do to things you cannot see, such as a precursor library or something of the nature. This works both ways, if the game isnt very challanging, it might be because of the lack of the AI getting any bonuses. Usually I like to play the game all the way through, just to see what happens. There was even a game where I had been in a war with the Dregin from the begining of the game, had spent all my efforts to finally beat them, controlled 3/5 of the galaxy, and suddenly found the other 2 AI ganging on me. Even though at that point I would have considered it a win (controlling so much of the galaxy (and 3 military resources to boot)) they still proved the better of me, because while I had been fighting my war, they had been researching technologies.
I have never found any of the games I have played to be stereotypical. (There is no point where I can honestly say "it is the begining of the end") When you start to win, the other powers often decide to bring you back down, and while there are some HUGE ways to exploit the AI, they are easy to simply "not do" Besides, exploiting the AI only leads to bad game habits. (Sorry if not all of it is proper english, I'm still learning)