Ah the words and the possible offending issue that some people have with them.
I don't think that words are inherently offensive but that people add that offensive part to it, for example the word nigger, I have used that word with a black friend and we joke with it, but then you always find someone that tells you not to use it because they find it offensive (SJW to the unneeded rescue I suppose?), however the word was only used as a joke between friends.
My point is that something that you may find offensive others may not find it like that or even more, they may like it. I have seen quite a few discussions over "transgirl and shemale", most of them are rants against shemale because they find the word offensive, but others like to identify themselves as shemale and don't see anything wrong with it. The thing is that shemale is more used in porn and well, this is a sexy game haha, I find it absolutely normal that it takes that word over transgirl. In fact I would say that's the whole point why many people refused the word shemale, because it is used in porn and it implies sexual objectification (or at least that's what most rants say)
The only point that would be left would be something like "okay, how about you give both options?", but the thing is that if the creators have to create changes everywhere because people don't like x or y word then this game would never advance. When we talk about sex scenes there are multiple different words to say "penis" and there are people that care about what word was used and it's the same with everything.
But to end I would like to say something that may be funny, I like much more the word shemale rather than transgirl, to tell you the truth for someone outside all of those issues I find it quite confusing all the "transgenderism and transsexualism", shemale is quite simple to use and more clear on the meaning, transgirl is more confusing, this is only my personal feeling over it.
I hope I didn't offend anyone with my message, if you felt offended I will say it clear, it wasn't intended, this is just my opinnion about word use.