Did the emergency lighting illuminate?
Only reason I can think of for not taking baggage is that it's dark up at o/h locker level and crew was concerned about possibility of mishandled baggage banging heads and small children.
Occasionally, the only way of rebooting errant computers on the ground is to de-power the whole aircraft and then power up again. No big deal - isn't there a joke about making a kissing sound and smacking an annoying bloke on the face?
