Rubbish, rubbish, rubbish.
You need nothing but experience and a will to work your ass off for little pay. Most of the chalet people I knew, and even some chefs, just had experience in the trade - I worked as a barman in the French Alps. When I got the job, I spoke little French, and only had a couple of months experience in the trade - got a job in the best bar in Meribel, and had the time of my life.
And dear god - ignore these stupid gap year ski companies... you can get a job, ski for virtually every day, and get PAID TO DO IT ALL if you get a job in a ski resort. Frankly, unless you plan to become a ski instructor as a carreer, there is little/no point in bothering with the cost of a full season of instruction.
God I miss it... I would gladly drop out of uni and go back out there right now, if I didn't have the lease on this place for the whole year.