It absolutely is a bad thing. That's why so much effort goes into designing and manufacturing rockets correctly. So the tests go well and you can move onto actual launches. Using that as a metaphor for canary builds displays a lack of knowledge in just multiple areas lol.

> Rockets failing in test flights isn't a bad thing.

I hate to be pedantic but for a whole host of environmental reasons, they are suboptimal, and it still incinerates money to lose a rocket during a flight test.