Warranty only covers defects in workmanship.
You could try to get a replacement under Warranty as a defective switch. However, if it's obvious the broken part is from a drop then that would be accidental damage and would not be covered under Warranty.
Otherwise, it would be covered under Insurance, if you have it.
Take it into a store and see what they say. They would only replace it with another DInc. I have not heard about model switches unless there have been chronic issues with a customer.
Hope this helps.