Miracles are achieved on a daily basis
Don't be silly.
Excellent recovery from disruption, perhaps sometimes, other times good people and training preventing disasters, but these are not miracles, just professional business operations.
This is the type of thinking that irritates people and leads others on the forum to compare parcel carriers to airlines.
As with some other posters on this thread, our business has severe competition; there are no excuses and only pain if we do not provide customer service excellence. (The product has to excellent, this goes without saying.)