Seems like a very specific concern in a very specific line of business. The vast majority of engineers write CRUD apps for business clients that mostly care about whether it completely explodes or not.
It also depends on the service. Some services are critical infrastructure and should have their edge cases tested. Some services provide non essential functions and can get away with less.
I agree that there is no magic number, but 100% coverage is clearly overkill for the average engineering team. In fact, broadly demanding any code coverage percentage is probably over simplifying the issue. It just shouldn't be 0 :)
It also depends on the service. Some services are critical infrastructure and should have their edge cases tested. Some services provide non essential functions and can get away with less.
I agree that there is no magic number, but 100% coverage is clearly overkill for the average engineering team. In fact, broadly demanding any code coverage percentage is probably over simplifying the issue. It just shouldn't be 0 :)