The shuttle programme was signed off in 1972, had it's first flight in 1977, and it's first crewed flight in 1981. Starship has been going for 5 years (albeit on the back of lots of other SpaceX work.) It's getting to orbit in the same time that Shuttle took to 'fly' on the back of a 747. A few lost ships is a pretty small price to pay for going twice as fast on delivery.