Mercule
Adventurer
The progress is the clear, unambiguous, and public statement by the company, "You don’t need to be confined to binary notions of sex and gender."
Will it stop all people from having issues at the table? Of course not. But the company taking an moment to actively make an explicit inclusion is new. In the past, inclusion was passive, by way of silence (and the existence of a single androgynous deity is still effectively - silence doesn't stop you, but it doesn't make a stand, either.
If you don't see that as progress... I'll go get a statement from a transgender player I know, and maybe you can learn a bit from it.
I have no.problem with the concept, but I did think the section was a bit long for what it was. It could have been handled in a couple sentences "While most players will tend to list either male or female, Dungeons and Dragons is a fantasy game that contains all possibilities found in the real world. The addition of fantasy races and magic moves well past binary labels."
What was in there wwent beyond clear and into preachy. But, just barely, so it's not a big deal, to me. I just wouldn't praise it. The people who want it in there likely don't need it to play what they want. Anyone disinclined to allow non-binary gender will be more annoyed than swayed.