I don't think Docker images are faster produced than OctoPrint versions.
BTW: Docker images are not produced by Gina but by other persons.
Give them some time to react to new versions.
Unfortunately the image build for 1.8.3 and newer are failing - they should be done automatically, but the new security changes in 1.8.3 (unintentionally) broke fresh builds with docker. The password hashing relies on system libraries, which weren't included in the docker image. We're still thinking of ways to keep the level of security that the argon2 hash provides without the added pain.