Who says Alpha 1 needed a personality? Woulda still been nice to see 2,3, and 4 get some.
Yeah, the AI is dumb enough that it really doesn't last long in fights. That's not exactly an insurmountable problem in and of itself, it's not like non-retarded AIs are a complete work of fiction. You'd still get a lot of fatalities with the standard setup due to various factors, but just sitting here right now I can think of workarounds to it- having fighters jump out when they get real armor damage or including escape pods in the wreckage LOD, for example. They just didn't do it because recurring personalities weren't really integral to the FS1 plotline and FS2 was basically an unabashed straight shoot-em-up all around. Basically, because Volition didn't feel like it.
And capships weren't really much better. Hell, in a straight fight, a wing of bombers on even the dumbest AI setting could grease a destroyer (never mind Alpha 1- gimme the average player enough ammo and they could successfully take on most of the GTVA fleet), there were all sorts of artificial situations set up to protect them and in fact most of the missions involved some variant on you playing babysitter running back and forth saving their dumb arses. You'd see them for all of about half a minute in a given mission (in those missions when they weren't in immediate danger of getting destroyed by a Nahema with half its shields torn off and two Cyclops bombs left), they'd sit around and look vaguely impressive until something stupid stopped working (honestly, the engineers musta really cut corners, there was always at least one thing going wrong with those damn caps), they'd jump out. No real distinct personality there, just a big hunk of metal with a ridiculously large crew number and a few nice guns attached to it.