What's the story with the Avro C102 (per law 20)? What's the connection with "A bad design with a good presentation is doomed eventually. A good design with a bad presentation is doomed immediately"? I'm intrigued.
https://en.wikipedia.org/wiki/De_Havilland_Comet#Comet_disas...
The second, more depressingly, is that the Avro C102 was cancelled to redirect resources to the Avro Arrow: Canada's mythical last jet fighter, of which only a handful were produced before the program was (painfully) cancelled, and Avro wound up. IIRC, the Canadian government was the main-to-sole bankroller of the project, and ballistic missiles became increasingly more important.
I dont think the Comet was a materially worse design than the Avro C102 (both aircraft are similar) and the C102 may very well have had other unknown issues only to be found if it went into series production.