Airline Pilots are supposed to prevent their aircraft to enter any stall. They are supposed to be aware at all times and to manage the energy of their aircraft to avoid them to enter any unrecoverable situation
If you could see what I am sure hundreds of simulator instructors often see during their training career, you would be staggered at the number of experienced and not so experienced pilots that are "supposed" to be able to prevent their aircraft from entering a stall - but are unable to do so.