@zappazapper I mean the back story isn't that silly compared to some other games where the lore isn't the main point, it makes some sense and is more or less internally consistent. At least kinda. Is it the best backstory and lore ever? No. That's but that's what I mean, it's simply not silly or completely ignorable that in this fictional world there's a human or other intelligent life piloting the ACU.
Your comment about it being a game and the human piloting the ACU is you in your chair on your PC is being deliberately obtuse. Should you never die in Dark Souls because you, the person in the chair, are still alive and not undead? What kind of logic is that?
Full share fundamentally makes sense, from both in game universe logic and gameplay perspectives. It's also consistent with every other Chris Taylor RTS like @Dragun101 said. If you don't care about that, then cool, gameplay is also far more important to me than in game universe logic anyway so I'm with you there. This has been discussed to death, but losing an ACU in full share is still a very big deal unless there's a huge rating discrepancy and it's much, much better than games where you have one teammate do something dumb means you insta lose. That would be bad, and would result in bad gameplay. Taking away full share from TMM for example or anything else really leads to boring turtle gameplay. If you don't want full share and aren't playing TMM then cool, go host some lobbies with the settings you want.
If you have an issue with assassination then host supremacy lobbies. That sounds tedious to play in my mind, but more power to you. It's a game at the end of the day, do what makes you happy. Removing assassination from the default would make most people unhappy and there aren't really any legitimate arguments for not having it as the default.