Sylvius the Mad wrote...
Ideally, sure, but they can't build that much content that people won't see.
It's a limitation of the medium.
But that's my exact point. Alistair, Morrigan, etc. You (the player) are not acting in their stead. The limitation of the medium ensures that the game is almost always told from the perspective of that character you create, hence looking at companions as 'yours' is a fallacy. If the game was always told from Morrigan's perspective, and we were allowed to choose Morrigan's class/dialogue/name, then sensibly she is our character. But on what basis you are saying that you are 'acting' in place of all the characters equally?
That's why what Bioware is doing with Isabella makes more sense from a logistical standpoint. In normal dnd, you have control over your pc and no other. Bioware taking Isabella and giving her a more defined personality (through her looks and weapon choice) continuously adds to the fact that she is a separate person from you .
But within the game, that's not true. Within the game she's a person, and if you think that she's a stronger character within the game if you (the player) don't change her, then don't change her. If you want to experiment with something else, or change her design such that you think it works better (by whatever criteria you deem relevant), then I see no reason why you shouldn't be allowed to do so.
Not having the option to change the default doesn't change what the default is, or what it's like in the game, or even its effect on the other characters within the game. And it doesn't change that, from the player's point of view, she is, ultimately, a toy.
I disagree with this mentality, mainly due to my experiences with Kotor. I personally loved all the starter outfits which your companions wore (Except maybe Carth's). When I tried giving them actual armor, the effect was very strange, as if the game wasn't designed for how they looked in these outfits. However, the starter outfits I loved so much didn't have any stats on them so I either had to gimp my party members or make them ugly (I chose the former option). By Bioware more narrowly defining how these characters function, their equipment has more of a relation to their personalities.