Doctors make stuff up all the time; they might deeply believe they are not, but they are detectives trying to figure out what is going on in a complex system.

AI is a tool that can be useful in this process.

Also, our current medical science is primitive. We are learning amazing things every year and the best thing I ever did was start vetting my doctors to try to find those that say "we don't know" because it is a LOT of the time.