I think it's great that this group exists. User empathy will, I think, be what determines whether WordPress lives or dies in the long run, and it's nice to see a proactive effort in that direction.

I'd love to see more vigorous questioning of "What do you, as a site owner, find difficult about WordPress?" and then those things being made development priorities Not only for new users, but for users in general.

For example, I'm *really* excited about the Front-End Editor, and suspect it would revolutionize the WordPress user experience once completed and debugged (not at all easy, obviously). The emphasis and official support it's being given (in its current incarnation as a plugin) doesn't seem to match its helpfulness to the WordPress UX.

tl;dr: This working group seems like a great development! Would love to see more like it.