No, but not for the reason the arrogant Canadian hockey chauvenists want to say there is. The fact of the matter is, while Atlanta is one of the most important media markets in the country, it's hard to get an owner to make a big investment in a property like an NHL team where it has failed twice before.
Atlanta is really behind the 8 ball in the quest for a strong owner, and that's the single most important ingredient. If an owner is found who's interested in doing the real hard work of building a viable franchise in the South, there are markets in the NHL right now that are LESS well suited for hockey than Atlanta, that are doing just fine.
There is nothing in particular about Atlanta that prevents that from happening. Everyone thought the Predators were doomed, but they've carved out a great little space for themselves in the NHL and have become a Southern success story. The problem is in the absence of an intrinsic interest in NHL hockey, owners have to find a way to stand out in a crowded sports market.
This is not unique to the South. The difference is that the "mainstream" NHL markets already did a lot of that hard work, while it still needs to be done in nontraditional markets. The teams that can find a way to excite the fans, will succeed. The teams that can't will struggle. And the key to that is ownership. And ownership will be even harder to find now than ever in Atlanta because of prior failures.
The failure of Atlanta hockey is, in other words, on the verge of becoming, if it hasn't already become, a self-fulfilling prophecy, at least partly because of the negative Nancying of the Canadian chauvenists, and partly because previous owners were not able to find the way to penetrate the market (the difference between that and no such way existing in the first place are a matter of discussion and one of the primary fallacies of the Canadian chauvenists).