While I'm not sure about the "glorious mass war stuff" (I don't know what you mean by that) or the real depth of the "strategy," there is undoubtedly developed AI.
Eeeh. It's a totally different creature than what most people think of when they think "AI". Or maybe it's just me? See, when I think "AI", I think of computer enemies that play on a level playing field with humans, and play very intelligently: no bonus resources, and not taking advantage of enormous CPM + infinite attention to detail. But in AI War, it's a completely asymmetrical battle. I mean, hey, that's kind of cool. I like asymmetrical fights, and games have a long history of them being awesome, from Space Invaders to Doom, plus that's the basis for basically every RTS's campaign mode ever.
But you have to acknowledge that "AI" here is more of a thematic element. The computer player flat-out refuses to pay you much attention, because it has so many other irons in the fire. Hell, in some ways it reminds me of leveling in Oblivion: If you advance too fast, or colonize worlds in the wrong way, you'll accidentally power up your enemy. The whole game is a stealth mission basically. If the AI really had any brains, it would go send a fleet of core-level ships and crush you in the first five minutes. I kinda don't understand why it doesn't, honestly; it has all these defensive fleets in every freaking system, and the players are the only threat it faces.