What happens if the computer malfunctions in mid-flight?
Many modern airliners actually have computers which will display common checklists and check off items that have been completed automatically. The reason they don't make this fully automated is because a malfunction in the computer, or a bug in the software, or a situation the checklists did not forsee could be disastrous. Having the pilots in the loop adds an important sanity check.
Note also that a lot of the steps in the procedure are testing warning lights and sounds, which really does require a human in the loop to listen or look at the alarm in question to verify it's going off.
Many modern airliners actually have computers which will display common checklists and check off items that have been completed automatically. The reason they don't make this fully automated is because a malfunction in the computer, or a bug in the software, or a situation the checklists did not forsee could be disastrous. Having the pilots in the loop adds an important sanity check.
Note also that a lot of the steps in the procedure are testing warning lights and sounds, which really does require a human in the loop to listen or look at the alarm in question to verify it's going off.