There was a bunch of back-lash when the scouts announced that gays were not welcome last year. Many parents pulled their support and kids from scouts.
This turn around is probably to try and get those kids and support back in scouting.

That being said, it makes things uncomfortable for non-gay kids knowing they are sharing private space like cabins and showers with gay kids.
This is the main reason that gays have not been welcome in the past... kind of like mixed male/female spaces.
Gay leaders I have never had a problem with as adults don't share personal space or facilities with the kids. Exception being if you are a leader you can tent with your child only.