Mr_Homn suggested and you agreed that it didn't sound inclusive of transgendered humans. I don't see how, as I said there are likely transgendered individuals from many species. Data's phrasing is all-inclusive. I'm sorry if I misinterpreted what you meant.
To me, data's phrasing seems to imply that the only invited transgendered people are from non human species. As if either A.)transgendered humans do not exist or B.)they weren't invited. If I was transgendered I might be a little annoyed to be grouped as a non-human.
I get the feeling that the writer may have been trying
to make the star trek universe seem more inclusive to LGBT viewers, but I think it was executed poorly due to the phrasing. Saying "ladies, gentlemen, and transgendered guests" would have been more inclusive and respectful. Too me the phrasing came off as a poor attempt at comic relief.