Because they find the idea of genetic manipulation moraly and philosophically horrific.The federation is really picky about superhuman anythings. For example they've had the ability to make augments for ages. (Khan) and could make tons of people like Bashier if they were so inclined. And you can't even hack them. But again there are problems with that the federation doesn't want to touch (again Khan).
There are none of the moral or philosophical problems that would come about from using augments if you use holograms. One is a computer, one is a person.In short no matter how much better an AI may be the Feds won't ever just use them instead of humans.
1) Where did we hear this?They won't even let people use stuff like VISORs or other cyberware kinds of things unless they're disabled.
2) It could just be that nobody wants them, they are rather ridiculous looking. I'll stick with the glasses, thanks.
That was just one example, in nearly every dogfight ever shown, we've always seen the pilot constantly tapping the controls.I supposed I'd have to look at the Kazon dogfight again.
Its also canon.In a dogfight kind of thing I'd expect them to have the pilot be active and pushing a lot of buttons, it's good TV
And why couldn't the computer do this itself? If its smart enough to fly the ship itself (something we have never seen happening) then it should be smart enough to do all those other things.but I doubt they're pushing buttons in the way you'd have to in order to actually fly on manual. They could be tweaking engine power levels, doing stuff with the weapons, remodulating the shields etc etc etc.
And we've heard the pilot tell the computer to perform these functions many times, which would logicaly point out that that's no what they're doing.
We have no canon evidence that they're doing anything but flying the ship.Just that what they're typing isn't "don't hit that" it's something at a higher level.