A Link to the Past
Banned
You're being a little unfair. I specifically said it was okay for people to raise their concerns, even though I personally would probably disagree with some of the complaints. It's bad writing (again, this is Bioware), but I think it came from a decent place, and that's my argument. We aren't talking about another character trying to shame or remove this trans character's actual identity -- traditional deadnaming -- it's just that character talking about their own history in a clumsy way. You might find it extremely unlikely, and that's fine, but that doesn't inherently make it wrong or transphobic.
As it's been pointed out elsewhere in this thread, trans identity has meant different things in different cultures and at other points in history. And (as I mentioned) some trans people today are more okay with this sort of thing than others. I mean no insult, but your feelings aren't as universal as you seem to think, even outside of some crazy sci-fi fantasy setting. (This is true of all our feelings, we all do this.) I'm only bringing up 'history' as a counter-point to the idea that your feelings represent some universality. I think the important aspect here comes down to the admittedly murky area of intent, and I don't see any malice or cruelty in what Bioware was attempting.
Honestly the most unlikely thing here is that the character would have an old name to begin with, or that the Mass Effect universe would even possess binary gender definitions. (Even having bodies period is kind of unlikely.) But Bioware has always been shitty at world building, and in their defense the market might not be particularly receptive to them going all posthuman.
(Just talking about the trans stuff here.)
(PS: There was textual stuff to suggest Dumbledore was gay, there was always a hint, though I'd agree it was very subtle.)
There have been a lot of trans people in this thread who completely disagree with your assessment (either directly or indirectly), especially the notion that it's a fairer assumption that the setting invited the use of the deadname as opposed to ignorance among the writers. I've also seen people cite the fact that there exist trans people who trick cis people into having sex with them as a defense for the character in Catherine, and that was no less transphobic for that fact.