i don't think a 10% success rate of getting a bot is comperable to a medicine. any medicine with a 10% success rate and a 90% mortality rate isn't going be be fielded so your comparison is, frankly, nonsense.
let's use a more realistic example: let's pretend you're asking people to pick a number from 1-10. you ask 15 people. no one picks #4. are you going to accuse the people you're asking of being broken?