Yes. An associate from NXP Technical Support did reach out to me with the following:
"the install guide is right - there is no way how to perform installation from command line. You can try to just copy files from existing GUI installation and modify Env variables in docker, but have no clue if it will be working. "
So I use the following command to tar up the entire installation...
cd C:\
tar -chzvf <destination folder>/S32DS_3.4_lifted-h.tgz NXP
Then, in my Dockerfile I do this:
| ADD S32DS_3.4_lifted-h.tgz . |
It works for us.