On reflection hardened debian based builds should not even have anon-base-files installed. It’s not a dependency in anon-meta-packages. Hardened debian and Whonix host is going to need its own base files package.
Freedom Software purists won’t be satisfied by that. They don’t want to download any iso including anything nonfreedom in the first place let alone boot anything nonfreedom including. Therefore would be futile. Instead I’ll be providing two meta packages and two build flavors pure and impure. Relatively minor extra effort for me. [However, I probably won’t be uploading purist builds. That should be done by someone else or self-made builds.]
Anything else on there should be (no) free vs nonfree discussion, please move here:
Sounds awesome!