"Maybe it was because I was throwing in big chunks of chicken breast and not chopping it up to 1 inch sizes which caused it to smoke and break. Could also have been turning it upside down and washing it, and then a little water getting in to it."
Hair dryers are made to produce heat, therefore have overheating protection. Food processors do not, therefore, follow the manufacturer's recommendations, cut the food to be processed into the proper size, don't immerse the motor or controls in water, and don't abuse the processor, requiring you to replace it.
Failure to act responsibly doesn't obligate a manufacturer to install safety features the machine was never intended to operate under.