Sounded to me like Amstel was saying the franchisee works really hard to not fall INTO default. Because of the high penalty - they lose any money they have put in and of course, all that sweat equity. Every business owner's prayer "let me get in the black and stay in the black".
Walking away generally means bankruptcy - you can only do that every 7 years. Albiet, going through bankruptcy makes you a good risk on any future venture where you are putting up substantial capital, since you can't walk away for another almost 7 years.