Let me be the one to burst your bubble by pointing out Obsidian hasn't removed it, at least not yet.
Also, please show me the evidence the memorial WAS transphobic. I can quote it to you, if need be.
No, but as I understand, they've stated that they're planning to? Obviously, if this is not the case, then my original message is no longer applicable.
I'm not really sure how I could provide you with "evidence" that it was transphobic. You've seem it the same as I. If you want, I can provide you with my reasoning. First of all, I don't think that the poem was necessarily intended to be transphobic. I can't really speak to the author's intent. However, I do find that the most obvious interpretation of it would be transphobic, and that's why I applaud Obsidian taking it out of the game (assuming that's what they're planning on doing).
The pertinent lines of the poem are these two:
The last woman be bedded, turned out a man
and crying in shame, of a cliff he ran
If we read it at face value - he had sex with a cis man who he thought was a woman, then it doesn't make much sense. Why didn't he notice the genitals differing from what he would expect? I mean it's not impossible or anything, but it seems like the author might have elaborated with some sort of explanation if this was the case.
The other, transphobic, interpretation though, is fairly straightforward. Firedorn had sex with a trans woman, realized it after the fact and ran off a cliff in shame because he considers trans women to be men (and having sex with men is suicide-level horrible, apparently). The reason that this interpretation seems more likely to me, is that it doesn't seem like it requires elaboration to make sense, and that the situation of having sex with a trans woman unknowingly is a fairly common trope. Disclosure - the idea that trans women have an obligation or at least really ought to inform all their sexual partners that they are trans is a common topic in the public discourse. Hell, there's even a Trans Panic Defense occasionally used by people who commit violence against trans people.
In this cultural context, the transphobic interpretation of the poem seems to me the more likely, and that's why I favour removing it from the game. Especially because I don't see it as in any way integral to the developer vision, so I don't see this stifling Obsidian's creativity in any way worth mentioning.