The thing with husky recall is that it absolutely does exist, it's just that they are a lot more intelligent about it. When you use your recall, whether it be a whistle, their name, what ever... they hear it each and every time, and as long as you've done okay with your training, they understand what you want each time too.
But unlike other dogs where they will blindly obey as they have been taught, huskies will make their own mind up about it. Should I come back for a pat and maybe a biscuit? Or should I keep chasing this tender juicy cat?
Should I run back for a treat? Probably not, all these new smells have me so excited and on edge that I cant eat right now anyway, so thats of no interest to me.
Different dogs will have different triggers, but what ever motivates your husky, if you want it to come back on recall, you have to make sure that what ever you're doing is going to be way more interesting for it than its current environment. This is why recall always seems so easy at home, but so hard when you get out into the wild.