well, my whole carb would have to explode for the linkage to come apart from the servo. I haven't stripped a servo or lost battery power due to excessive drainage. I have had my servo lose power (connection broke free) and my car went to idle (not brakes) and saved me from alot of money.
I've seen a couple of 1/8 buggies with a failsafe and a weak trs and they spent weeks waiting for parts after an incident.