It is interesting how the Blackhawks seem to have dodged this controversy whenever it re-appears. I think it's mostly because their name doesn't contain a slur/and their logo is not so much a caricature (like the Indians' logo). It's not much different than the Washington Football Teams logo, but it's really the name that's a big problem there. It's interesting that the KC Chiefs and Atlanta Braves are also dodging this.
This logo has always been floated when talking about the Blackhawks. It's cool, but still contains Native American imagery as does the name. Sounds like they have done a lot of talking with the Native communities around them and seem to have their support so that's probably where it ends up being considered alright.
