Felixthecat
That would be a reasonable question if your basic tenet was correct.
"Modern" aircraft are not in fact "technical marvels" at all.
They are astonishingly old technology.
Nobody drives a car that old fashioned. Nobody uses a telly or a phone a 10th of the age of that technology.
The Airbus is practically Stone Age.
These two gestated at about the same time for about the same length of time. They even have the same plastic beige finish...
Clever in their day......
Imagine if we judged what a phone would be capable of today based upon the 80's equivalent.
Don't judge what old aircraft can do against the future.