A big reason for that in the past much fewer developers were confronted with this problem domain.

In larger companies packaging and deployment was often the responsibility of ops, with some input from and interaction with development. That of course also meant much longer lead times, arguments about upgrading versions of libraries or other executable dependencies, divergence of production and development/test environments, and the associated unfamiliarity with the production environment for developers and hence often more difficult debugging.

Ever since Docker (+ Kubernetes and various cloud specific container solutions) became so popular, a lot of devs now at least partially deal with this on a regular basis.

Which is mostly a good thing, due to the negatives above.