Eh the number of teams doesn't really matter to me. Before we were added people were complaining that 26 was enough, the number is just arbitrary imo.
I'd feel alot different if they were trying to make it work in cities of questionable size. Houston and Atlanta are two of the largest markets in the US and are only going to get bigger. I dunno about Utah, but its had a basketball team for a long time so there is at least something going on there.
The big key is to make sure the owners are legit with legit backing, and while nuts ,the expansion fee certainly helps that out.
Hockey is in a weird position because as long as you can build the fan support it can make it in areas that something like football can't simply because of the scale, so having more teams makes sense to me.
That said if I was Atlanta I would want a fresh start rather than needing to deal with the mess left over from a previous owner. Would be an interesting fact that they end up with the original Winnipeg franchise after having the Thrashers move there though.