Excluding uptight scolds is a feature not a bug. There's a lot of overlap between people who find Vegas objectionable and people who find red teaming objectionable (because why would any decent person know attacking/exploiting techniques).
The irony is that Vegas takes a dim view of those that take advantage of their gaming venues. The institutions that run it are quite aggressive when it comes to being attacked.
Anyways, security conferences such as BSides run all over the world in various cities where red teaming type activities is embraced. IMO it'd be nice to diversify from Vegas, preferably places with more scenery/greenery like Boulder or something.
I don't understand why security conferences are attracted to Vegas. In my opinion its a pretty gross place to conduct any conference.